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It seems many people are having issues modifying their straps with older GPUs using Hex Editor. I literally had about 50-60 PMs people BEGGING for me to modify their bios. I stopped doing it because it was time consuming. I will post the GPUs I currently have which I am using.


I am getting very close to 300 Sol/s on each of my 7950 / 7970 / 280x using these straps with Claymore 11 .
I am getting very close to 350Sol/s on each of my Reference R9 290 (1100/1450) using STILT BIOS mods with Claymore 11.


Just flash these straps at your own risk, if you have no idea what you are doing, then leave this thread now. I assume NO RESPONSIBILITY if you brick your GPU, messed up your memory chips, etc. YOU HAVE TO MAKE SURE YOU HAVE THE CORRECT MEMORY. ELPIDA WONT WORK WITH HYNIX STRAPS.

---

These straps are basically modified with these timings

HYNIX AFR or MFR



ELPIDA EDW2032BBBG




All credit goes to

http://www.overclock.net/t/1554360/tahiti-memory-timings-patch-for-hynix-vram


I set the memory clock lower so you can increase into the higher straps if you aren't having stability problems.

The straps are

1375 MHz (1001-1375 MHz) - AFR 1000MHz Memory Timings, tight
1550 MHz (1376-1550 MHz) - AFR 1125MHz Memory Timings, tight
1700 MHz (1551-1700 MHz) - modified AFR 1250MHz Memory Timings by The Stilt, tight
1900 MHz (1701-1900 MHz) - modified AFR 1375MHz Memory Timings by The Stilt, tight

So start at 1400Mhz, if it works try 1575 and see which is better. Even try 1701 but I doubt it will be much faster.

---

https://www.asus.com/media/US/products/wrVii9B32pnTuM3r/P_500.jpg

ASUS R9 280X with HYNIX AFR memory

https://mega.nz/#!zwl1WDIa!kLFqZgCkMPiH1DOQe3Rg3FbQHpXZN-xq_CdmREBha04

Slight undervolt to 1.075V, 1070/1600.  
MSI Might say 1375 for mem but its 1600 since I didn't update the previous DPM field in VBE.

---

https://www.asus.com/media/global/products/0MltKGsARClFuQZQ/P_setting_fff_1_90_end_500.png

ASUS 7970 with HYNIX MFR memory

Slight undervolt. 1100/1400.
Try running at 1575 Mem, I had one GPU lock up at that mem freq so I am leaving it lower at 1400.

https://mega.nz/#!m08FhDgL!D_AhbYCZfPNZTzXct7vU6u-DJpEEb_8mLMc0OtJfBl8

---

http://www.techspot.com/articles-info/496/images/Image_02S.jpg

GIGABYTE 7950 with HYNIX AFR Memory

Slight undervolt. 1000/1400.
Try running at 1100/1575.

https://mega.nz/#!L5N1kIzQ!Cabi7Cg_wO91jMzk9lKmsB5pfZXNKTggBjMetNgZrIQ

---

http://www.guru3d.com/miraserver/images/2012/gbt-7970/IMG_5796.jpg

GIGABYTE 7970 with HYNIX AFR Memory

Slight undervolt. 1050/1400.
Try running at 1100/1575.

https://mega.nz/#!Do1GlbYb!-fohVnHB2Fk04BNDTmznQwGovXWBX7fd8ZmlVG9aaw0

---

http://i67.tinypic.com/qnmvbn.png

Gigabyte 280x and Elpida EDW2032BBBG

https://mega.nz/#!K9l3jDCT!z8tmV57GkU6JEHxgaZhkOdCMMS09XF9a0z5YJfyyZJg

---

http://i64.tinypic.com/jkh8c6.png

MSI 280X HYNIX MEMORY

https://mega.nz/#!XgUkHITB!OfyjihtlhHgi5Mk3fYPr-w3EbB1qXsVt0BB5r66EJew

Downclocked to 1000/1400. If its stable keep increasing until 1100/1575.

---

http://images.anandtech.com/doci/7481/290Car_678x452.jpg

REFERENCE R9 290 / R9 290X

https://drive.google.com/drive/folders/0B2XVfIhkHZlfMllHSHp5RmFvYlU?tid=0B2XVfIhkHZlfcVR0QzhlQlhJYTA

290X:

MBA_C6710101-100_K2_AGR_STILTMXT_V32.zip (DPM7 - 1.2375V)

MBA_C6710101-100_K2_AGR_STILTMXT_V36.zip (DPM7 - 1.2125V)

MBA_C6710101-100_K2_AGR_STILTMXT_V3A.zip (DPM7 - 1.1875V)

MBA_C6710101-100_K2_AGR_STILTMXT_V3E.zip (DPM7 - 1.1625V)

MBA_C6710101-100_K2_AGR_STILTMXT_V42.zip (DPM7 - 1.1375V)

MBA_C6710101-100_K2_AGR_STILTMXT_V46.zip (DPM7 - 1.1125V)

290:

MBA_C6711101-100_K2_AGR_STILTMP_V34.zip (DPM7 - 1.2250V)

MBA_C6711101-100_K2_AGR_STILTMP_V38.zip (DPM7 - 1.2000V)

MBA_C6711101-100_K2_AGR_STILTMP_V3C.zip (DPM7 - 1.1750V)

MBA_C6711101-100_K2_AGR_STILTMP_V40.zip (DPM7 - 1.1500V)

MBA_C6711101-100_K2_AGR_STILTMP_V44.zip (DPM7 - 1.1250V)

MBA_C6711101-100_K2_AGR_STILTMP_V48.zip (DPM7 - 1.1000V)


The recommended memory frequency is 1375MHz - 1450MHz for Elpida and 1375MHz - 1475MHZ for Hynix.

Start with the lowest voltage and move your way up if its unstable. If you are lazy just flash with the highest voltage.

You can also remove your backplate in your R9 290 and it will run cooler and quieter try following.
http://semiaccurate.com/2013/11/11/diy-amd-radeon-r9-290x-heatsink-mod/

10x for the thread dude.
What frequencies are you using?

I modified my bioses almost an year ago for better EHT mining. For those who cant use a HEX editor, try out this repository:
https://docs.google.com/spreadsheets/d/1odJXgWbHUcIS9fAxaXB-nPD8WWH1sBdd_XBOe3F3jo0/edit?pref=2&pli=1#gid=0

Just find your GPU (which might not be very easy).

thank you very much  ;)

Anybody have something or a hint for Samsung K4G80325FB-HC25 that ships with ASUS Strix
RX 480 OC 8gb?

Those are very easy to mod. See
https://bitcointalk.org/index.php?topic=1584617.0

Asus 280X working perfect. 1031/1600, 70 sol.

Please mod bios for Saphire 280x Dual-X HYNIX, and ASUS 7950 DirectCU II Top V2- HYNIX.

Links to https://docs.google.com/spreadsheets/d/1odJXgWbHUcIS9fAxaXB-nPD8WWH1sBdd_XBOe3F3jo0/edit?pref=2&pli=1#gid=0 is dead.

wow good work nice tut.

if I use this :ASUS R9 280X with HYNIX AFR memory

https://mega.nz/#!zwl1WDIa!kLFqZgCkMPiH1DOQe3Rg3FbQHpXZN-xq_CdmREBha04

me gpu: gigabyte r9 280x
Memory Vendor: Hynix
Memory name: H5GQ2H24AFR
Memory size :3072 MB

shot gpu-z  https://i.imgur.com/woCLr91.gif

me card is death yes or not ? :P

Thanks! Can't seem to find a good combo that beats stock settings for zcash + claymore 3.1 @ -i 2
Currently getting average of ~55h/s per card.

i- 2

NO DONT USE THAT ONE.

You can try the Gigabyte 7970 one, since I had a Gigabyte 7970 and I flashed a Gigabyte 280x bios on it and it worked in the past. NO IDEA if flashing an 7970 bios on a 280x will work. You might brick one of your bios. Do it at your own risk. You got dual bios at least.

ok thank you man ;) perhaps save my gpu ;)

ya but all links are dead!

Hello, here is my stock elpida bios from Sapphire Dual-X 7950:
http://rgho.st/8lZ2tqRtk
Also i have ASUS DCII 7950 Hynix:
http://rgho.st/6rnPRbmjt
I will try modif by myself, but any help would be appreciated :)

All files https://files.fm/u/ruqnp46k

With the newer Claymore miners you guys might have to either run them at lower clocks like 1000/1400 or up the voltage.

When I created these miners they were stable for V2.1 but with his new optimizations some GPUs crash at 1100/1575

Maybe you can share "Tahiti GDDR5 Identifier"? ASUS Radeon MemoryInfo 1.005 shows info only for primary gpu.

Use GPU-Z

Anyone with ELPIDA GD25Q10TCP?



adapter bn dn fn dID       asic           flash      romsize test    bios p/n
======= == == == ==== =============== ============== ======= ==== ==============
   0    01 00 00 6798 Tahiti          GD25Q10TCP       20000 pass 113-C38650-XTL
   1    08 00 00 6798 Tahiti          GD25Q10TCP       20000 pass 113-C38650-XTL
   2    09 00 00 6798 Tahiti          GD25Q10TCP       20000 pass 113-C38650-XTL
   3    0A 00 00 6798 Tahiti          W25X20           40000 pass 113-AD47800-100
   4    0D 00 00 6798 Tahiti          GD25Q10TCP       20000 pass 113-C38650-XTL

The ASUS (adaptor 3) did work fine, thanks adaseb

confirmed gigabyte 7970 bios is ok > 280x gigabyte winforce works perfect 58sols up @68-71sols but i need some tunning vddc @1.170V (vbe7)


before: https://i.imgur.com/woCLr91.gif


now: https://i.imgur.com/3lLEprn.gif

speed up: https://i.imgur.com/0LqqczO.png

thanks again !  ;D

Please help me modding timming bios my msi r9 280x ,bios upload to mediafile below .
https://www.mediafire.com/?fkp2xmke9ll4kk1
Thank you

wow !  :o wtf!?



damn you the best :D

Hi, it's 4 club 3d 280x royalqueen(s)

:)

Version 4.0: 84 sol

I tried the old bios (Club 3D 280x   Hynix & Elpida      Optimised both Hynix and Elpida   https://www.dropbox.com/s/r75j4ua7x5tnb2b/TUL_R19FA_XL4CU_AGR.zip)

i works, but no speed improvement  ???

Hey, thats great. Thanks for your help!  :) :)

http://www.filedropper.com/club3d

MSI RX470 4 gb tends to crash anything above 1800 memory. :'( Anyone came up with a solution? I really dont care about the electric usage.

Also I never get the exact hash on the pool, tried every pool. 60 ms on shares...

Thats crazy, here's what GPU-Z says:

http://gpuz.techpowerup.com/16/11/10/7pa.png

Yes you have the optimized strap already. Try memclock of 1501Mhz or 1375Mhz and see if it makes a difference.

Hello. Help me change the BIOS, please.
I do not know how to do that.

sapphire r9 280x vapor-x hynix

My BIOS
https://drive.google.com/file/d/0B0r67t2LiOPOM2hVYUdBUGhWWW8/view

ZEC:
GPU0 54.889 H/s - memclock 1501
GPU1 67.341 H/s - memclock 1375

thanks a lot for your help

My BIOS Spahire 280x DualX ELPIDA AND HYNIX, ASUS 7950 Hynix

https://mega.nz/#fm/M05C2IaS

Please help

 
I wish it existed for RX480.

ZEC - Total Speed: 356.066 H/s, Total Shares: 151, Rejected: 0, Time: 00:17
ZEC:
GPU0 68.025 H/s, - Club3d 280x royalqueen
GPU1 64.876 H/s, - Club3d 280x royalqueen
GPU2 68.551 H/s, - Club3d 280x royalqueen
GPU3 68.495 H/s, - Club3d 280x royalqueen
GPU4 86.120 H/s - Asus 280x

What was your speed prior? I have no idea if those ELPIDA timings are any good for ZEC.

with claymore 3.1 it was about 45 sols for club 3d and about 50 for the asus.
your modded asus bios gave about 20+ in claymore 3.1 and now about 85 with claymore 4.0

Please make a modded strap BIOS for the MSI GAMING 280X with Hynix.
Here's the bios off the card.
https://mega.nz/#!FF0yXTAB!ysLkZpV917FVt-2JY1FhFk00IMHkdA2Z5JPDF3zeakQ
I have a Stilt BIOS on my XFX 7950 and it is amazing, hope you can make one for the MSI 280x.
EDIT: Posted the wrong link.

Hey, in the end i got curious about this but im afraid of doing something wrong. I have a rig of 6x raedon - shappire hd 7950

http://www.guru3d.com/miraserver/images/2012/7950-cfx/IMG_5711.jpg

this is my hash speed

https://s13.postimg.org/xhngnovmv/tahiti.jpg

How fast u think it can go and do u mind to check my bios room?

If i get a good boost speed i dont mind to send u a tip :P

Nope) 85 max with -i2. -i1 the same, and -i0 79-82

P.s. BIG thanks to you, Claymore do miners, you make bios for it)

Hello,

Does anyone know where can I find mod bios for R9 380's? I get only 45 h/s, and 7950 get 70 h/s.

Where can I use some of the mods described in the thread?

Thank you

These are only for 7950 / 7970 / 280x.

380 is a completely different GPU design. And I don't have any of those GPUs to mod.

You should get at least 85 Sol/s with your Reference 7950, I got one running also. Its a Reference 8950, its probably similar to yours.

I got gigabyte 7950 and i put your bios. Cannot run claymoreminer 4.0 at 1100 mhz core and 1575 mhz mem because miner says invalid data.. I change voltage to 1.200V and 1050mhz core 1450mhz  mem and now it runs 75-79sol without errors. :) I dont know if more voltage would change anything..

my 7970 go worse with 1100\1575. 78 vs 85 on default clocks . -i2
try to run it on defaults

Thank's

Then I will wait until someone will mode Tonga :)

+-75sol on 1050\1400.. it was like 85sol 1100\1575 but so mutch error messages in miner after little mining that i have to put less clocks...

For those with the R9 290 or R9 290x, in at least some cases (non-Reference card designs are said to not always work), flashing TheStilt bios should work just as well for ZEC as it did for Scrypt or ETH.

someone have moded bios for r9380 2G ?

they actually the worse speed i have only 40-41mh, the r9270 does 44 (memory at 1490) ???

i have sapphire r9 380 1000/1400 samsung memory
xfx 380 990/1375 samsung
asus 380 970/1375 samsung

none runs at 1500 memory with default timing

380 and 280x are completely different GPU designs. They have a different GCN and different memory bandwidth and everything.

Anyone have any of these RX 280 Powercolor Red Devil's? They have a very convenient bios switch. Seems like they would make a good candidate.  

I have a bunch of sapphire 7950 with elpida memory, do you think this rom will work on these cards? or do you have an idea which one will?

looks like the cards have elpida edw2032bbbg memory chips

I have a bunch of these cards so I might go ahead and try it, unless of course you know for sure it won't work

will u mod my room for a fee? Cuz i tried myself but didnt see no improvement in speed. It looks like im doing something wrong. I would love to reach 80 h for my 7950 cards.

What are the power consumption of there GPU ?
thx

which 7950 do you have? Im working on mine when i get home from work later today. I can post results and post the rom when im done.

It seems like the Club 3d Cards also support Hynix...

http://imgur.com/a/TN4Yz

i have hynix AFR in my sapphire vaporx and dualx

will this (posted in OP) rom work on my cards?

Can you mod R9 270X - pitcairn - Hynix ?

thank you so much for the new bios. Unfortunately for me it is not changed anything.


edited bios: https://mega.nz/#!qtsjFboJ!W31t7WMaDZWMso2pYJb6vKk154YsI8LtfQjnHqpNH9Y (https://mega.nz/#!qtsjFboJ!W31t7WMaDZWMso2pYJb6vKk154YsI8LtfQjnHqpNH9Y)

before
https://i.imgur.com/ljFdIno.png

after
https://i.imgur.com/ADPkCvI.png

cards you do not mind so overclocking
http://picua.org/img/2016-11/11/39k9iy6oalrh9zjnhympkjv7g.jpg

Hi! Looking for modded bios for Sapphire 280x Hinyx/Elpida, also for Gigabyte Hinyx/Elpida!

try this Gigabyte elpida

https://mega.nz/#!qtsjFboJ!W31t7WMaDZWMso2pYJb6vKk154YsI8LtfQjnHqpNH9Y (https://mega.nz/#!qtsjFboJ!W31t7WMaDZWMso2pYJb6vKk154YsI8LtfQjnHqpNH9Y)

I saw a 65sol result?

Didn't work with the Asus Hynix Rom... had to switch the bios on the card

@adaseb Cant flash this bios. Any bios for sapphire with hynix memory? Any link for easy to understand hex editor? LOL Thanks.

you have my same results. This bios did it adaseb

The Elpida straps are as follows

1250 Mhz  (- 1250 Mhz)
1375 Mhz  (1251 - 1375 Mhz)
1500 Mhz  (1376 - 1500 Mhz)
1625 Mhz  (1501 - 1625 Mhz)

Try the other straps.

Turns out I had a Gigabyte 7970 with Elpida, running at 1000/1500 was only 70 H/s. I will try 1375 and 1501 and see if the results improve.

If you want to try 1375 you will need to modify file with VBE7 since you can't downclock memory lower then 1500.

I don't have any of those cards so maybe someone else can mod them for you. The only resource I have is that link on overclock.net.




The Asus Hynix won't work since your memory is Elpida and your card manufacture is also different.





The Gigabyte Hynix is listed on the first post. The 7970 "might" work in your 280x. Mod at your own risk.



No they won't work.



Power consumption doesn't change

Radeon shappire HD 7950

http://images.anandtech.com/doci/5476/7950_Front.jpg

I did tried to modified the room but i didnt see any improve of speed. If u can tell me ur results and rom would be great. Thank you.

I got 1 of these. Its actually the fastest ZEC GPU I have. Faster than the 280x. It has Hynix MFR memory. No idea how it differs from the 7950 reference but its technically a 8950.

You should EASILY get 85 Sol/s with that GPU. Its actually the only 7950, that runs stable at 1100/1575.

http://cdn.videocardz.com/1/2013/02/Radeon-HD-8950-OEM-4.jpg

please post bios. will try if it will work. those bios at google drive dont work. same hashrate.

https://mega.nz/#!C0cQUBhS!hcPGx8zKddhnI2vPAb6djSyU--j8WiUwECmlJnHcZS8

Report your results if it works or boots at least. Make sure you got HYNIX MFR mem.

---

The Elpida memory seems very bad, I can't get any improvement with my Gigabyte 7970, seems the timings are off OR Hynix is just a better performer. Can't get any more than 70Sol/s with it.

---

Also if you guys are getting incorrect shares when running at 85SOls or so, its probably the risers. I got a few identical 280x and in one rig, it keeps getting incorrect shares while the rest of the rigs are fine. Exact same card and same bios. The ribbon risers supringly have less issues than USB  risers.

Also one of my GB 7970 runs at 1100/1575 @ 87 Sol/s but its inside the x16 slot. The others won't run at that speed being on a x1 riser.

Found some newer straps that seem to be getting 80 Sol/s on ELPIDA, will look inside the BIOS and see what the changes are. Running at 1000/1500.

EDIT: Here are the straps, seems only one strap is modified the F0 49 02 which is the 1500 Strap (1500-1624). I think i got this strap during ETH mining from Ellvoip (the dude who modded the 480's straps).

I want to try this for my powercolor r9 280x. My card has hynix afr mem (H5GQ2H24AFR). I know nothing about hex editing so I checked your reference link (overclock.net).
There is "Tahiti-HynixMemoryTimingsPatch.zip 92k .zip" .  It does hex editing automatically, right? Saved my bios with gpu-z, than used this patch.
Corrected checksum with VBE7 after that. Now is it ready to flash or is there more to do ?

Of course I take full responsibility and my card has dual bios so it shouldn't be a big problem, I will just switch to second bios and flash it, i won't touch the original one i'm using right now.
Also big thanks for sharing all this info.

Edit : My card has afr mem, not mfr.

I never used that tool, so try it and see if it works. If it does it will make everyones lives easier. However some guy on Overclock said to avoid modding with that tool, no idea why. Problem is that some bios's have more or less straps and that tool only mods certain ones.

There's a good increase in hashrate from 60 to 80. but goes down to 70's. The card is sapphire 7950 OC with boost. at first the card rejected flashing the bios. After a few tweaks it did accept it. Downside is, my previous setting is at 962Mv, this bios is at Mv1090. Will let it run for a while. Thanks @adaseb

Please post bios for elpida 280x. Will try it also.

So I tried some of these out on a rig with 4 Gigabyte 280x Windforce, 3 had Elpida, 1 with Hynix.  This rig was getting cumulatively .266 Mh/s with TheStilt ROM mods from the GPUs.  This rig also has an AMD FX 8350 8 core processor and using nheqminer_v0.3a was also getting about 14 H/s using 6 or the 8 cores. So, .280 total.

After modding each GPU with  Gigabyte 280x and Elpida EDW2032BBBG as appropriate, and with the GIGABYTE 7970 with HYNIX AFR Memory for the other 280x with Hynix (yes, it works) the rig with 925/1375 1094 mV on each GPU the rig from the GPUs got .270 Mh/s.  So not much of an improvement over TheStilt ROMs.

I noticed more CPU usage with these mods as well.  So I shut down the nheqminer for the CPU and reevaluated.  The rig now gets .287 on average.  So it seems that there is no reason to run a separate miner for the CPU, at least for this rig, now.

Those ROMS are basically the Stilt ROMS. Where did you find his old database, it seems offline and nowhere to be found.

Yeah its because the BIOS is probably slightly different, make a backup of your BIOS and just change the memory straps into the file I sent you. Because there seems to be difference of voltages between your GPU and mine. Its not exactly the same.

Tried all roms, none would flash, they all popup "SubsystemID's mismatch", the "Tahiti-HynixMemoryTimingsPatch" also doesn't work on any of my cards.  I am in the process of learning to hex edit these guys but having a hellish time of it.  If anyone can do these I'd be eternally grateful,  I think these will also be useful to whoever else have these cards once they are hacked properly.  These are my power saving roms, I tried to keep the volts to the minimum (except for HD7990) and overclock as necessary in msi afterburner, they just need proper timings hexed in.  Will post back if I have any success on my part.  A short, quick and easy "to the point" tutorial would also be excellent if possible.  Thanks!

        HD7950Sapphire.Vapor-X.Elpida.rom      58 H/s
   HD7970Powercolor.Hynix.rom                    58 H/s
   HD7990aSapphire.Hynix.rom                     70 H/s
   HD7990bSapphire.Hynix.rom                        70 H/s
   R9280Powercolor.Elpida.rom                        60 H/s
   HD7950Club3d.Elpida.rom                            53 H/s
   HD7950MSI.Ref.Hynix.rom                            63 H/s
   HD7950MSI.TwinFrozr.Hynix.rom             61 H/s
   HD7950PowerColor.Elpida.rom                    58 H/s

Contains all the roms, but megafileupload full of ads so made links from another "clean" host as well.
http://www.megafileupload.com/4500~f

------------------links without annoying ads---------------------------------------------
http://filegooi.co.za/get2/8461e6aa507a39a067328ca89a7a5b9c/HD7950Club3d.Elpida.rom
http://filegooi.co.za/get2/9a485be598689cbeb728f1e9be1b6171/HD7950MSI.Ref.Hynix.rom
http://filegooi.co.za/get2/f2d3af378fe27d5d314cd40fd458a0c7/HD7950MSI.TwinFrozr.Hynix.rom
http://filegooi.co.za/get2/0b18c8b72a32354d446e91a417dd33b0/HD7950PowerColor.Elpida.rom
http://filegooi.co.za/get2/fe2cd34fd151c1ea29565b274f8c6120/HD7970Powercolor.Hynix.rom
http://filegooi.co.za/get2/03310e8b5280b7ab94d71b838264b892/HD7990aSapphire.Hynix.rom
http://filegooi.co.za/get2/97d812a5537e6df0cfd11f111fb6062a/HD7990bSapphire.Hynix.rom
http://filegooi.co.za/get2/216c023de99bbf3f8b121614c8e36a0c/R9280Powercolor.Elpida.rom
------------------------------------------------------------------------------------------------  

"Those ROMS are basically the Stilt ROMS. Where did you find his old database, it seems offline and nowhere to be found."
Stilt bios collection (found it in link someone on forum, but cant find link so re uploaded):  
http://filegooi.co.za/get2/793937d26ce90df63f9fd57fd540d981/79xx.280+Stilt+BIOS.7z

So far what I can tell you is that modding ELPIDA does nothing, its crap memory. Speeds are pretty much almost the same as stock. Running some tests at the moment, however with that Gigabyte 7970 Elpida I can't get 80 Sol/s like with its Hynix counterparts.

I modded the bios of Sapphire 280x Vapor-X 3GB Hynix and Sapphire HD7970 3GB Hynix , if someone needs them i can upload them.

The 280x is good on all straps, but the HD7970 is only good on 1300 memory , higher is getting errors in the miner .

280x on 1100\1375 mem is 83-85s , hd7970 on 1100\1300mem is 80s .

Im looking for a modded bios for my Sapphire HD7950 OC 3GB Elpida EDW2032BBBG :)

Those GPUs were highly requested, post them somewhere and ill put the link in the main topic.

By the way, the incorrect shares might not be the GPU but it might be the Riser not being able to keep up with the bandwidth.

Try putting that GPU inside a x16 slot and see what you get.

Have a Sapphire HD7970 Vapor-X GHz Edition(3GB, HYNIX AFR memory)
Stock bios was giving ~52sol/s (1050/1500)
Tried GIGABYTE 7970 with HYNIX AFR Memory, OS started but mining failed(0.0 sol/s)
After that flashed ASUS R9 280X with HYNIX AFR memory.
And now my GPU gives ~83-87sol/s, peaking at 96sol/s in Claymore's v4.0
https://i.imgur.com/ZW9NIdd.jpg?1

Got a little excited seeing 90 sols on 280x, flashed gigabyte elpida to sapphire elpida, bricked the card. good thing there are 2 bios'es in this card. Restored the primary using the backup.

Anyone with sapphire elpida bios with improve hashrate? Im getting 65 at the most. Thanks.

Thanks very much adaseb.

Guys stop flashing the wrong firmware bios. Wait until someone with those cards mods the BIOS. Really surprising its actually hashing for you since its a completely different manufacteur even.


Either way its nice to see these old GPUs back in the game, they were almost forgotten with the RX series but are now killing 470s and 480s left and right.

Yep, agree it is. But it is stable for 30mins already. Will report after 24h

I think your rate is faster than most because you have it inside a computer case correct? No risers?

Nah, you're wrong. My 7970 is on pci-e x1 with a riser(x1-x1)

It did. I flashed your asus 280x bios to my toxic. from 67sol/s to 82+ sol/s. Whoever wrote that checksum correction at overclock.net is a genius. Thats one way for bios from different firmware get accepted.

Alright I finally found a good ELPIDA timing strap. Use only 1500 Mhz. That Gigabyte 7970 finally gets 80 Sol/s using this, previously it was max 70 Sol/s

Put it inside your bios, I am too lazy to do any more Hex editing.

This has only 9 timings so make sure you include an extra dummy timing so the length of the file is the same.

I´m getting 60sols on sapphire 7950 vaporx.. i edited bios in the LTC/DOGE era.. only undervolting if think.
Should i try Stilt bioses? Are there any better options?

Sapphires 7950 vaporx and Gigabytes 280x here. New bioses welcomed.

Congrats and thanks on the thread, adaseb

Its actually on the card that is inside the case and on to full slot, but the mobo is little old with amd chipset and the full slot is working only on 8x , the other card with the riser is ok. I will upload the bios now and give links.

Arghhhh, no idea how to do this... I've flashed bios before on these even, but never hex edited a bios file ???
I have according to GPUz and the lookup function.
2 Sapphire HD 7950 Vapor-X OC Boost Elpida
Sapphire HD 7970 OC Boost w Hynix
2 Sapphire HD 7950 FleX OC Boost w Elipida
PowerColor PCS+ HD 7950 w Elipida
Sapphire HD 7950 Dual-X with Boost w Elipida
Then a Sapphire Vapor-X R9 280X OC with hynix
MSI HD 7970 OC w Hynix mem

Is there a tutorial somewhere.

Can you share them?

Can someone help me to modify this BIOS?
https://drive.google.com/open?id=0B7DY4HtlGV7VY1IxQ2R1YXlTMFU

It's from MSI 7950 with Hynix MFR/AFR (shows both, depends on what identifier you use, Asus one shows MFR, Tahiti gddr5 shows AFR, and VBE7 shows both, lol).

Thanks!

Please help i send original bios
Asus 7950 Hynix
https://mega.nz/#!Jkgx0LRC!LU84b0dramqa8oTl5QluTYpgH4b0I9aeHnzBr-BGBW0

Saphire 280x Dual x Hynix
https://mega.nz/#!chgk3RDC!r_yX_uWsEifmTHfrNQ1VdtVCvg12ztBFdRBR4FsTLpA

Saphire 280X Dual X Elpida

https://mega.nz/#!BgwhhK5L!N3JIqFegfKyE_DHmo8BHodu9heZcNC89um0pBJ-tLuY

Thank

rx 480 4gb bios
https://drive.google.com/file/d/0B8zkKK9h3vQeYWc3bG9WSFEtdi1BMjFUMkFqRGFkazFEbXBN/view?usp=sharing

can this one also ?

thanks

https://bitcointalk.org/index.php?topic=1584617.0

can you help me with my r9-280x toxic bios pls (hynix)
im getting 66-69 stock card
 
https://www.mediafire.com/?b1chxa2t23vd0k6

Thanks for the Elpida Strap :)
Working fine with my MSI 280X GAMING Elpida

Stock Strap: 65 H/s
Your 1500 MHz Strap: 77-80 H/s

Alright you guys asked for a tutorial, here is a tutorial,

http://club.dns-shop.ru/forum/?p=0&action=thread&id=123833#1271944

Only problem is that its in Russian.

I cannot even find the 7771 he used as reference. LOL.

Yeah but you got a general idea of how it works now at least.

It took a lot of digging but I did eventually find a working link to The Stilt bios for download - last year.
No idea if it's still up or not though - the link I found refered back to his thread on the LiteCoin forums but I don't think there was a FORWARD link anywhere to the working download site.

 I made a point of downloading ALL of them at that time, and tossed them on a USB flash drive - if I can figure out how to get a FTP server working through my current firewall appliance I'll look into putting them up for download.

This is a bit confusing. The bios i got from gpuz indicates elpida, also says elpida when you open it at vbe7. Now i open the rom with hex editor its all 01 which tells me its hynix.

Your BIOS has usually 2 types of straps for both HYNIX and ELPIDA memory. Just modify the one you are using.


Yeah would be good, would help out a bunch of people here.

That number is simply used to label each particular set of timings, AFAIK the number used is arbitrary.

Some card BIOSes include timings for multiple types of memory, it allows a GPU manufacturer to switch VRAM used in production batches based on price/availability/etc... without making any other changes.

An Elpida timing could potentially be 00, 01, 02 (or possibly even 03) it depends on how many sets of timings the BIOS has.

Personally, when I 'm hunting for timings in hex I search for 33 20 00 00 00 00 to find all the timings regardless of what numbering scheme they used.

I wonder is there anything for 280x with hynix BFR memory.
Seems no one done for those.

Thanks for clarifying. Now i get 78sol/s after editing the hex. What is that timing in hex?

Yikes! What kind of GPU is that

Yeah thats the most I can get with ELPIDA GPUs. The memory is just worse then HYNIX.

temp goes up also. before at 65 sol/s its 56C now at 78sol/s its 61C same core clock and voltage.

I just followed the instructions on that russian tutorial.

However, after I modified the bios, and tried to open it with VBE7 program (just to verify it was valid) it says the checksum is wrong and won't open it. Then I actually flashed it to the card, and it showed the new information to be blank on the card like it normally says old info was Taithti PRO or whatnot, and new info says Taithti Pro.. But this time it was all blank for the new info, so I pussed out and put back the original bios on it. In never rebooted the system.

Is that normal for the new info fields to be blank, I wouldn't think so. Thanks.

Here's what ATiwinflash output on the modified bios.
C:\Users\1a\Desktop\biosstuff\atiflash_274>ATIFLASH.EXE -f -p 0 0mod.ROM
Old DeviceID: 679A
New DeviceID: 0
Old Product Name: TAHITI PRO GDDR5 3GB BIOS
New Product Name:
Old BIOS Version: 015.025.000.099.000000
New BIOS Version:
Flash type: GD25Q10TCP
20000/20000h bytes programmed
20000/20000h bytes verified

Restart System To Complete VBIOS Update.

After that I reverted to original.

I followed the same steps. Mine did open on vbe7. Then I edited the voltage, core clocks and fan control on vbe7, saved it to a new file name then flash it. Card accepted it. Editing in vbe7 corrected the checksum.

Hrmm.... not sure what I could have done wrong.. Guess will try again.

NEvermind, I'm an idiot, I thought vbe7 didn't open it, and was still showing the previous cards bios I opened but it did actually load it, and once I saved it with vbe7 it corrected the checksum. The part about using vbe7 is not present in the tutorial though. Should be added.

Whats your hashrate?

exactly this one..
https://www.techpowerup.com/vgabios/168873/msi-r9280x-3072-140302

on that card it didn't change. 70 HS/s. Not sure....Probably doing something dumb.

https://drive.google.com/drive/folders/0B2XVfIhkHZlfcVR0QzhlQlhJYTA

 Not my work, I think this is the link I found last year to download them from.

Just ask ... will always mod for you  ;)

Download https://drive.google.com/open?id=0B6R3UoULhg3cbWYwVlYzNmUtSGc (https://drive.google.com/open?id=0B6R3UoULhg3cbWYwVlYzNmUtSGc)

Modded with straps from 1250MHz --> 1375MHz , 1500MHz  (1500MHz Should kick ass - ~80+ sols/sec)


p.s.1 - Flash with AtiFlash.exe from command prompt,  atiflash -f -p X rom_name.rom  , x = card number given by atiflash -i

p.s.2 - This is not some "Dirty hack" with timing tables from some totally other card, but timing table from same card's bios, for that specific memory (BFR).

b.r.
Brka

can i use on msi r9 280 (with out x)?

hello sir


i would like to ask how to modded asus r9 280 ?

wat i have read, i cant flash 280 bios with 280x bios . both this is diffrent. do suggest me the method i need to use in order to flash my gpu

currently my gpu only get 45- 50 sol..

thanks

How to know which strap is tight?

can i use that on my sapphire r9-280x toxic?
my toxic has (H5GQ2H24AFR    hynix memory)

Better try first one, which is for
ASUS R9 280X with HYNIX AFR memory.

This one worked with my sapphire hd 7970 and is stable for more than 10 hrs

Hi!
Took my ASUS R9 280X with hynix memory. Flashed this rom: ASUS R9 280X with HYNIX AFR memory
Now graphics driver 15.12 stops responding with Claymore v4.
Basically - what went wrong? :)

this one is same with r9 280 right?

took this rom and flashed mine. i have r9 280 asus... after flash , nothing happen.. still remain same. 60 sol..


please help how u get 85 sol/s

Are you sure they are the same card? If you overclock before, try to reset to the default or lower clocks.

Great but..
"Invalid Checksum"

-- fixed.

Is this also good for my Club 3d r9 280x?
Elpida GD25Q10TCP

Regards

Here's an original ROM from a Sapphire HD 7970 3G OC w boost, Hynix AFR:

https://filetea.me/t1sPYG8i8RVRfue3wnGq2XLXg

If anyone can mod it for me I'd love to compare the two with TheStilt mods I have and report back to this thread.

Yes



Open and close in VBE7 and save.



No thats a Radeon 8950, won't work with your 280x.



If you have the same card as in the photo it should of worked. Maybe try increasing the voltage in VBE7, since its undervolted. I run them headless.


You will need someone to mod your 280 bios.  R9 280 and R9 280X are different GPUs.

You will need someone to mod your 280 bios.  R9 280 and R9 280X are different GPUs.


[/quote]

hello sir..could u help me sir?

i tried and a few hours ago my card bricked...and i re-flash again and alive again...:)

There is a guide here

http://club.dns-shop.ru/forum/?p=0&action=thread&id=123833#1271944

However I don;t have any straps for the 280, dont know if the 7970 280x ones will work. The card is a little different.

few hours ago, i tried to use 280x bios...but seems like not compatible. so....a google again and found 7950 is 280... so i try to use it...but finlly my gpu bricked.


so i reflash again....

https://drive.google.com/open?id=0B8mIxnX_aocKVXZTMzlUemJIa1k

this is asus r9 280 original bios setting

please help me sir..:)

i already use eliovp 4gb for this one
thanks for both of u

Yes because you used a different bios. Backup your current BIOS, follow that Russian guide and modify your straps manually to the ones I posted in the main page.

In fact, wrong checksum on memory timings doesnt matter,
So i force flash it with atiflash from command prompt.

P.s. i also have some msi 280x, didnt check which memory is inside,
But bios is larger than on older 280x/7970 (they put new serial flash ic in, its double the size),
Modding gave me some solid results, should be good for your card, too. (Sustained 80+ sols/s).

@others, dont flash this bios randomly. It's gonna brick your cards. It's only for mentioned msi card.

Have anice day.

B.r.
Brka

I managed to get 74 sol of r9 280x elpida


https://drive.google.com/open?id=0B-wCF2Y5z10nTmk4LTZCVzItMXc (https://drive.google.com/open?id=0B-wCF2Y5z10nTmk4LTZCVzItMXc)

Yes, the same ASUS as in Picture. With Hynix H5GQ2H24AFR memory.
I increased voltage via Afterburner 4.20.. did not helped.
Original ROM is here, please check it if You have time:
https://www.upload.ee/files/6342365/Originaal_ASUS_R9_280X.rom.html (https://www.upload.ee/files/6342365/Originaal_ASUS_R9_280X.rom.html)
Just wondering, what is wrong or different with my ASUS cards.. I have around 12 ASUS r9 280X cards.



Quote from: Yerba on Today at 10:38:22 AM

Hi!
Took my ASUS R9 280X with hynix memory. Flashed this rom: ASUS R9 280X with HYNIX AFR memory
Now graphics driver 15.12 stops responding with Claymore v4.
Basically - what went wrong? Smiley


If you have the same card as in the photo it should of worked. Maybe try increasing the voltage in VBE7, since its undervolted. I run them headless.

How would I know which strap is tight? Basically we are just copying the timings of the tight strap to the other strap but which one?
As I can see backreading thru the work of the Stilt, he edited hex to be tight but not just copy pasting the lower tight strap to the higher strap.
Thanks.

This is the same question I have.  On the HD 7970 I mentioned above there are 5 timings for the Hynix AFR.  On my GPU the 3rd and the 4th timing have identical hex code.  The last is different.  I copied the 3rd and replaced the 5th with it.  Not much change actually.  I am sure that I am missing something and that is why I asked for someone to mod my original from the link above.

Basically use this

http://www.binaryhexconverter.com/hex-to-decimal-converter

Put in the code backwards like

20 4E 00 -> 00 4E 20 and you get 200Mhz.

You only need to update the strap you are using.

Hello there,

is there anybody who will mode my Bios HD7970 Sapphire Vapor X GHZ edition for ZEC mining please??It's Hynix AFR.
Original Bios is here:
https://ulozto.cz/!irAvZqBdNeFZ/sapphire-hd7970-3072-130711-rom
or here (it's the same)
https://www.techpowerup.com/vgabios/151332/sapphire-hd7970-3072-130711

I'll be very gratefull if somebody do it for me
I can flash Bios but I am too noob to change the timing in Hex Editor

Thank you very much

Could someone help me getting these straps into my rom?
would be great
http://www.filedropper.com/club3d

Anyone,  please?  I tried flashing the one from stilt's collection, card would not show up in device manager anymore,  had to revert to default.

As a temp solution until we have correct bios, try flashing this one. It is working with my vapor-x ghz, now more than 24h stable ~83-88 sol/s

Thank you very much!

still cant do this sir....my sol/s decrease until 30sol/s.

lol

SAv5 works on windows7 and on r9280x. 75-80sol/s. almost same hashrate with claymore but without fees.

Nice but honestly I got no sleep since Oct 28th, unless we are talking about 50% more profit, hardly worth switching over.

bro,

is there any effect for the windows that we used?

as an example currently u use win7

how about 8.1?

8?
some of my friend said for mining is better to go windows 10

what is your words dude?

thanks

No difference, as long as you install cgwin correctly. Claymore find more shares at the same speed. Im still letting it run to see if SA will catch up.

Take some rest.

Amount of shares doesn't mean anything. Every share is a different weight. Pools balance the share size so you submit a share every few 30 seconds or so. It doesnt affect your overall speed.

I set the same difficulty level on the same pool. Receiving the same nonce.

Hmm, maybe its just luck should even out in a few hours. Highly doubt its displaying the incorrect speed.

Will let it run further but initial 24hours claymore finds 27% more.

I just dont know where to put this lines.
I find the 22 AA in my hex editor though... and where and what to put inside this dummy timing?
Would be really nice if someone could help me with that.  ;D

Guys,

Where I can get a BIOS for XFX RX480 8G (Ref). I'm using lowpower, but want something else.

Thx

Do you confirm then that there's a 27% difference in the amount of coins obtained?

Because if there's a delta like that, it means that there's the need to make further studies in this matter, to understand the real gains due client/server side hashrate, shares and so on.

Where to put this comand :

20 4E 00 01 33 31 33 20 00 00 00 00 61 88 11 08 D0 54 07 04 0C 07 C1 00 00 21 60 00 22 AA 1C 00 02 00 14 20 8A 88 80 A1 00 00 01 20 03 02 06 07 09 08 0D 0B
40 9C 00 01 33 31 33 20 00 00 00 00 84 94 22 10 F0 54 09 06 0F 0B A2 01 00 23 80 00 22 AA 1C 00 12 01 14 20 8A 88 00 A0 00 00 01 20 06 05 0B 0C 11 0C 10 0D
80 38 01 01 55 51 33 20 00 00 00 00 E7 AC 35 20 50 55 0B 0D 1A 97 34 03 00 24 81 00 22 AA 1C 00 4B 06 14 20 9A 88 00 A0 00 00 01 20 0C 08 15 19 21 18 1B 11
A0 86 01 01 55 51 33 20 00 00 00 00 29 31 46 24 50 55 0C 0D 1C 18 A5 03 00 26 A1 00 22 AA 1C 00 4B 07 14 20 9A 88 00 A0 00 00 01 20 0D 0A 18 1B 25 19 1D 11
1C 19 02 01 55 51 33 20 00 00 00 00 29 B5 46 27 50 55 0C 0D 1E 99 05 04 00 26 A2 00 22 AA 1C 00 4B 08 14 20 AA 88 00 A0 00 00 01 20 0E 0A 1A 1E 28 1A 1F 11
78 5D 02 01 55 51 33 20 00 00 00 00 6B BD 57 2D 60 55 0D 0E 22 9C 96 04 00 28 C3 00 22 BB 1C 00 53 0A 14 20 BA 88 00 A0 00 00 01 20 10 0C 1E 22 2E 1D 23 12
10 98 02 01 77 71 33 20 00 00 00 00 8C C5 48 2F 60 55 0F 0F 25 1E 17 05 00 48 C4 00 22 CC 1C 00 5C 0B 14 20 4A 89 00 A0 00 00 01 20 12 0D 20 25 32 1F 26 13
30 E6 02 01 77 71 33 20 00 00 00 00 AD CD 49 2F 70 55 0F 10 29 21 98 05 00 4A E5 00 22 EE 1C 00 64 0D 14 20 5A 89 00 A0 00 00 01 20 14 0E 24 2A 38 22 2A 14
40 0D 03 01 77 71 33 20 00 00 00 00 CE 51 4A 2F 70 55 10 10 2B A2 18 06 00 4A E6 00 22 00 9D 00 64 0E 14 20 6A 89 00 A0 00 00 01 20 15 0F 27 2D 3C 23 2C 14



Where to put the command and with what program? Cna some1 tell me the steps ,because I never before did this.
Can you send me any video tutorial ?

What speeds is everyone getting with Claymore 5? Mine are peaking at 120H/s with Hynix mem

Which is pretty much my 470 and R9 290 speeds

Here you go http://www.filedropper.com/club3dmodded
If you like you can donate me some ZEC ^^: t1TkccsX7TxuezkP9sHGX9hJ7scwD1Ag2Pa

Can you help me too, please?

These straps:
20 4E 00 01 33 31 33 20 00 00 00 00 61 88 11 08 D0 54 07 04 0C 07 C1 00 00 21 60 00 22 AA 1C 00 02 00 14 20 8A 88 80 A1 00 00 01 20 03 02 06 07 09 08 0D 0B
40 9C 00 01 33 31 33 20 00 00 00 00 84 94 22 10 F0 54 09 06 0F 0B A2 01 00 23 80 00 22 AA 1C 00 12 01 14 20 8A 88 00 A0 00 00 01 20 06 05 0B 0C 11 0C 10 0D
80 38 01 01 55 51 33 20 00 00 00 00 E7 AC 35 20 50 55 0B 0D 1A 97 34 03 00 24 81 00 22 AA 1C 00 4B 06 14 20 9A 88 00 A0 00 00 01 20 0C 08 15 19 21 18 1B 11
A0 86 01 01 55 51 33 20 00 00 00 00 29 31 46 24 50 55 0C 0D 1C 18 A5 03 00 26 A1 00 22 AA 1C 00 4B 07 14 20 9A 88 00 A0 00 00 01 20 0D 0A 18 1B 25 19 1D 11
1C 19 02 01 55 51 33 20 00 00 00 00 29 B5 46 27 50 55 0C 0D 1E 99 05 04 00 26 A2 00 22 AA 1C 00 4B 08 14 20 AA 88 00 A0 00 00 01 20 0E 0A 1A 1E 28 1A 1F 11
78 5D 02 01 55 51 33 20 00 00 00 00 6B BD 57 2D 60 55 0D 0E 22 9C 96 04 00 28 C3 00 22 BB 1C 00 53 0A 14 20 BA 88 00 A0 00 00 01 20 10 0C 1E 22 2E 1D 23 12
10 98 02 01 77 71 33 20 00 00 00 00 8C C5 48 2F 60 55 0F 0F 25 1E 17 05 00 48 C4 00 22 CC 1C 00 5C 0B 14 20 4A 89 00 A0 00 00 01 20 12 0D 20 25 32 1F 26 13
30 E6 02 01 77 71 33 20 00 00 00 00 AD CD 49 2F 70 55 0F 10 29 21 98 05 00 4A E5 00 22 EE 1C 00 64 0D 14 20 5A 89 00 A0 00 00 01 20 14 0E 24 2A 38 22 2A 14
40 0D 03 01 77 71 33 20 00 00 00 00 CE 51 4A 2F 70 55 10 10 2B A2 18 06 00 4A E6 00 22 00 9D 00 64 0E 14 20 6A 89 00 A0 00 00 01 20 15 0F 27 2D 3C 23 2C 14

Onto this bios: https://drive.google.com/open?id=0B7DY4HtlGV7VY1IxQ2R1YXlTMFU

I donate ZEC.

At least i could try, cant guarantee its working though^^
http://www.filedropper.com/7950modded

@adaseb, do you still have optiminer zip file? no longer available at his github? can you upload it? will give it a try. thanks

Yes it did. Most likely due to luck of pool also. Pool found more blocks during the claymore run. Its not as concrete as that.

No I deleted it.

It never worked however with Windows.

adaseb,

This is the existing modified ROM from a Sapphire Dual-X HD 7970 3G OC with boost GPU, Hynix AFR memory,

I have attempted to follow the Russian video and I get this far:

https://s17.postimg.org/4zw0sfxaj/hexeditor.png (https://postimg.org/image/4zw0sfxaj/)

After finding all five of the 77 71 hex incidences I copy the strings between them, and immediately after the last one to give me:


I note that the last three strings are identical as this is a modded ROM already.  Which of these strings would you change, and why?

Please help,
Thanks

adaseb,

here are the strings from the ORIGINAL ROM for that GPU from the techpowerup.com database:

imo if it's already been modded then start with your backup up bios and copy it to bios 2, then copy a lower frequency strap to all of the higher frequencies.  See how it works, then try another one till you get one you like -- or try some of the straps on here

I have a bunch of old 7950's with elpida memory that I found a decent strap for, but oddly one of the sapphire Vaporx gpus had Hynix in it and I couldn't get it to work any better than the Elpida.  Also the same Bios won't work in all the sapphire 7950 versions,  but the same strap will work in each bios. It's really not as hard as it looks, just play around with it. ... those Ruskies explained it pretty well on that website

I may play around with it some more if more straps pop up -- with claymore 5.0 my 7950's elpida memory are running around 100+sols, which isn't too bad for an ancient gpu.  my RX 480's are only around 120+ sols

I've even been baking my old dead 7950's in the oven to bring them back to life  -- so far I baked 4 and 2 of them started hashing again -- have to bake about 10 more -- rofl

Is that for me? Just want to make sure :)

Does anyone have something for Sapphire 280x dual-x?

Hi, I like to try this, anyone info for Sapphire R9 280x Vapor-x  3x elpida  bios 15.042   1x hynix bios 015.041

https://docs.google.com/spreadsheets/d/1odJXgWbHUcIS9fAxaXB-nPD8WWH1sBdd_XBOe3F3jo0/edit?pref=2&pli=1#gid=0

not sure what to use

Try resetting your cards on stock. On optiminer I can reach 150sol/s on stock 280x.  ;D

I have stock, dual bios button to switch, possible to switch power still on?
use silent army windows  4x 280 250 sol

Linux optiminer
what driver are you using for linux, amd  16.40 / 15.12  also add the video user like install silent army? 

Yes, it is.

Will try at home, thank you!

I tried and hashing speed is the same as before, can you please check if the timings were saved? :(
I would do it myself, but tried for 2h to understand the hex editing thing and got nothing.

Best straps for a R9 290 card? 

With elpida memory

Try 1375 MHz mem-clock

Tried, I actually get lower hash, at around 90, instead of 95.
Maybe the strap I asked you to add is bad? It is the first one posted in the OP, for Hynix, which I have.

L.E. I think I did it, I took the chance and took the gigabyte 7950 modified rom from the OP, and flashed on my MSI. Now I have 100h/s stock. Time to up the clocks and see where this goes.

Glad to hear you got it working. I am not really experienced at this kind of thing, just had some free time and thought i could try. Sorry it didnt help.

Hi,
Is there any ways to get memory type under Linux ?
I've dumped the bios, and my card is that one : https://www.techpowerup.com/vgabios/161932/msi-r9270-2048-131211
Of course, the goal is to find the best timing :)

With the Claymore V5, you should get very close to 120Sol/s however you will need the clocks to run at 1050-1100 for engine core and around 1550-1600mhz for memory clock. Most GPUs have stability problems at those clocks however. Elpida are much worse then Hynix.

adaseb, please look at and comment on my posts above.  Which strap would you change or move and why?
5 straps starting at 1250 -> 1750

I have 4x GIGABYTE GV-R928XOC-3GD REV2 Radeon R9 280X 3GB that I have been using mining zcash.  Is it just a matter of flashing this rom in the via atiflash that is in the original post?  That's it?

Post your ROM and i'll mod it to the Hynix AFR I posted in the main post.

You sure you got Hynix and not Elpida?

Depends, check which memory type you got with each of those GPUs.

Use GPU-Z. If you got Hynix for all of them, flash with the Gigabyte 7970 Hynix ROM posted above.

Do one GPU at a time in case something fails.

I have 4x Gigabyte 3GB all with GDDR5 (Elipida).  GPU Clock 1100MHZ - Memory 1500MHZ

I have 1x VisionTek 3GB with GDDR5 (Samsung).  GPU Clock 1050MHZ - Memory 1500MHZ

Thanks!

For your Gigabyte 280x try

https://mega.nz/#!K9l3jDCT!z8tmV57GkU6JEHxgaZhkOdCMMS09XF9a0z5YJfyyZJg

Its slightly undervolted, so increase voltage if you have instability and slowly increase to 1100Mhz/ 1575Mhz from 1000/1500Mhz stock.

Elipida is always slower and that card only runs at 108Sol/s for me @ 1000/1500. Try 1100/1575Mhz and if its stable you might get up to 120Sol/s.


For your Samsung, I got nothing.

Yeah, like I wrote:  Hynix AFR memory:

Thanks

I actually have no idea which string does what. I just copied these timings from that overclock website but what they did to modify them I have no clue.

I ran across the weirdest BIOS yesterday...
It's an XFX 280 and has timings for Hynix AFR, BFR and Elpida.... but the timing table is TINY!

Each one has only four timings with transitions at 400, 800, 1250 and 1625

Unsure if the card was AFR or BFR so modded both, getting peaks just over 110 sol

I have flashed the rom you mentioned above with atiflash to one of the Gigabyte (Elipida) cards.  I am getting 95 - 97 H/s.  When you say "Try 1100/1575Mhz" do you mean modify the rom itself with VBE7.0.0.7b.exe to match those numbers, save it, and reflash the card with the new file or do you mean set those settings in MSI Afterburner?  Forgive me for my lack of knowledge this whole mining thing is new to me and I am trying to learn.  Thank you!  Anything I can do to the bat?  Here is how it looks now and thanks!

GPU_FORCE_64BIT_PTR 0
GPU_MAX_HEAP_SIZE 100
GPU_USE_SYNC_OBJECTS 1
GPU_MAX_ALLOC_PERCENT 100
GPU_SINGLE_ALLOC_PERCENT 100
ZecMiner64.exe -zpool zec.suprnova.cc:2142 -zwal user.0 -zpsw pass

You can do it in Afterburner since you are allowed to overclock, you just can't underclock there you would have to use VBE7.

Hi adaseb Loving your support for modding gpus. Do you have anything for MSI 280x ?

Ok, here is a stupid question and i'm almost embarrassed to ask, but how do you copy the straps into Hex Workshop, i found the correct line etc, i copy the strap to the clipboard but it won't allow me to paste it in the hex workshop. i don't want to have to retype that long line.

This ^^^

Wow really, thanks for the help!!!!!!

Sorry but I thought it was blatantly obvious, if you don't know what you are doing then it is suggested that you stop before blaming others for a mistake you make when touching something you don't fully understand that's all ;)

if paste doesn't work then go to edit / special paste / CF_TEXT and check "interpret as hexadecimal string" / paste

Thank You Sir.  ;D at least your reply was very helpful and worked

Alright can somebody with a MSI R9 280X mod the BIOS and post it. I don't have any of those GPUs and can't test. That and I think the Sapphire 7970/280x are also most requested.

I used your modded gigabyte 280x hynix on my sapphire 280x and its hashing happily at 140+sols on optiminer for 3 days now. Just undervolt to not overburn the incompatibility.

Which Sapphire 280x is it? There are many variations like the dual-x, Toxic, etc

here is my MSI gaming 280x Rom, could you mod this for me?

http://www.filedropper.com/tahitigpu1_1

I flashed it on Toxic. I think in general it will work just have the correct cheksum.

I flash 280x vapor-x tri-x but not stable, I went back to the original bios
memory hynix AFR

copy this timing
20 4E 00 01 33 31 33 20 00 00 00 00 61 88 11 08 D0 54 07 04 0C 07 C1 00 00 21 60 00 22 AA 1C 00 02 00 14 20 8A 88 80 A1 00 00 01 20 03 02 06 07 09 08 0D 0B
40 9C 00 01 33 31 33 20 00 00 00 00 84 94 22 10 F0 54 09 06 0F 0B A2 01 00 23 80 00 22 AA 1C 00 12 01 14 20 8A 88 00 A0 00 00 01 20 06 05 0B 0C 11 0C 10 0D
80 38 01 01 55 51 33 20 00 00 00 00 E7 AC 35 20 50 55 0B 0D 1A 97 34 03 00 24 81 00 22 AA 1C 00 4B 06 14 20 9A 88 00 A0 00 00 01 20 0C 08 15 19 21 18 1B 11
A0 86 01 01 55 51 33 20 00 00 00 00 29 31 46 24 50 55 0C 0D 1C 18 A5 03 00 26 A1 00 22 AA 1C 00 4B 07 14 20 9A 88 00 A0 00 00 01 20 0D 0A 18 1B 25 19 1D 11
1C 19 02 01 55 51 33 20 00 00 00 00 29 B5 46 27 50 55 0C 0D 1E 99 05 04 00 26 A2 00 22 AA 1C 00 4B 08 14 20 AA 88 00 A0 00 00 01 20 0E 0A 1A 1E 28 1A 1F 11
78 5D 02 01 55 51 33 20 00 00 00 00 6B BD 57 2D 60 55 0D 0E 22 9C 96 04 00 28 C3 00 22 BB 1C 00 53 0A 14 20 BA 88 00 A0 00 00 01 20 10 0C 1E 22 2E 1D 23 12
10 98 02 01 77 71 33 20 00 00 00 00 8C C5 48 2F 60 55 0F 0F 25 1E 17 05 00 48 C4 00 22 CC 1C 00 5C 0B 14 20 4A 89 00 A0 00 00 01 20 12 0D 20 25 32 1F 26 13
30 E6 02 01 77 71 33 20 00 00 00 00 AD CD 49 2F 70 55 0F 10 29 21 98 05 00 4A E5 00 22 EE 1C 00 64 0D 14 20 5A 89 00 A0 00 00 01 20 14 0E 24 2A 38 22 2A 14
40 0D 03 01 77 71 33 20 00 00 00 00 CE 51 4A 2F 70 55 10 10 2B A2 18 06 00 4A E6 00 22 00 9D 00 64 0E 14 20 6A 89 00 A0 00 00 01 20 15 0F 27 2D 3C 23 2C 14

save in hex, make cheksum in Vbe7, flash with atiwinflash 2.7.4

I modded this ROM as described with all of the code from the OP's first post.  It was very unstable with 1500 mem.  Would only run for about 1-2 minutes.  But if memory clock was at 1375-1450 it gave varied results from 96 sol/s to 107 sol/s with core clock at 950.

The intensity value had to be 0.

I also tried using VBE to undervolt to 1100 from 1175 with no noticeable difference or improvement in stability.

I gave up and returned to TheStilt mod ROM where it gets about 92-97 sol/s.

If someone has any insight on how to make this more stable, please advise.

I am having the same issues, some cards run at 1575-1600Mhz mem, while other fail at even 1500Mhz. No idea why.

Its hit or miss, I guess. The ones that fail at 1500Mhz, those I just run at 1400Mhz.

Adaseb, great work. I'm reaching 125 H/s on a single Asus 280x using your strap bios (able to reach it with an OC'd 5820k at 4.5ghz), Claymore v5.0, -i 2.

I think you are the winner and got the highest speed on the 280x using Claymore V5. Mostly due to your fast processor.

I am getting close to 145 Sol/s on most of my rigs. How are you guys doing with Version 6.0 ?

Yeah 144.7 H/s here with v6 (I didn't know it was out until you mentioned it).

Maybe I`m stupid but I want to ask about the strap on page 1. I downloaded some Rom for asus and Gigabyte, but when I opened it and search for the strap, it`t not as same as which one you posted on page 1. Btw when I tried to edit manualy edit every symbol cause I didn`t know how to copy paste from the web to Hex  :-\ , my MSI 280x with Hynix got bricked :( Now I`m using 2nd bios. Can you tell me about editing the strap? I search " 10 98 02" to located the strap.

Alright i'll do the MSI 280X Hynix since it seems to be highly in demand.

You saved my day. Btw do you need any stock rom? I can backup for you. And did i do something wrong with the strap? I just tried to replaced all numbers and letters before and after "10 98 02".

Since I have alot of rigs: 280x msi, 280&28px pc, 280x saphire vamper X, 280x his... Could you show me how to edit the bios, and I can donate zec for you :) And I will upload the rom for all member to use it.

The long awaited MSI 280x HYNIX is here.



http://i64.tinypic.com/jkh8c6.png

MSI 280X HYNIX MEMORY

https://mega.nz/#!XgUkHITB!OfyjihtlhHgi5Mk3fYPr-w3EbB1qXsVt0BB5r66EJew

Downclocked to 1000/1400. If its stable keep increasing until 1100/1575.

Quick on the modding :) Do you have tahiti memory version ?? I can upload default rom if needed or is ones on tahiti unstable to point no go?

Tahiti = 7950 / 7970 / 280X.

I am confused



LINKS ARE UP FOR THE REFERENCE R9 290 FEATURING STILT BIOS MODS IN MAIN POST. TRY AND POST YOUR RESULTS. WOULD LOVE TO SEE HOW FAST A R9 290X WITH HYNIX MEMORY CAN GO!

result for zec?

Try it and let me know. So far some guy got 135 Sol/s.

Running seven 290x here. To make clocking them up easier in MSI AB (Because it's a pain adjusting seven different cards), I'm trying to find each cards best strap to allow me to clock all cards identically.

All the cards have been modified with 390x memory controller timings, clocked to 1000/1250 and DPM7 voltage reduced to 1150mv in BIOS. The strap I'm using I've copied to all higher straps so as to find the absolute best performance without timings changing with different straps.

For mining ZCash, it seems to favour core clock on RX cards, but on these 290x it loves fast RAM. My cards :-

Hynix Cards
XFX Reference 4GB with Hynix AFR using Lard's 1000MHz strap. This one clocks well on RAM, with stock timings will do 1500MHz causing minimal memory errors in HWInfo.
MSI Gaming 4GB with Hynix AFR using Lard's 1125MHz strap. This one's a bit shit, causes total PC lockup with memory at 1450MHz with stock straps.
MSI Gaming 4GB with Hynix BFR using default 1125MHz strap. The best RAM overclocker with stock straps. Goes straight to 1500MHz, no errors.

Elpida Cards
XFX DD 4GB with BBBG and using Stilt's 1250MHz strap.
2 x ASUS DirectCU II 4GB with BBBG and using Stilts 1250MHz strap.
Sapphire Strix 8GB with BABG and using default 1250MHz strap.

I don't know yet where these four Elpida cards will clock to with these straps..... Still testing.....

With old versions of Claymore, the Elpida cards, especially the Sapphire one, were the clear fastest. With V5 and 6 the tide has turned, the Hynix cards are ruling.

With all cards clocked at 1000/1350. Each of the Hynix AFR cards comfortably do over 170 sol/s, the BFR manages around 165~170 sol/s. Each of the three Elpida BBBG cards only do around 155~160 sol/s and the Sapphire card, which was the best card, is now the worst, it doesn't even make it over 150 sol/s.

I had drawn a conclusion that something "special" about the Hynix memory allowed them cards to be faster, something other than just memory timings, because all of the cards are running much tighter timings. The tighter timings have helped across the board, but still the Hynix cards are way out ahead.

However, another forum user here, Bardacuda (http://www.overclock.net/t/1561372/hawaii-bios-editing-290-290x-295x2-390-390x/3300#post_25650552), has literally had the exact opposite happen to him. The Hynix cards started out as the fastest, and with tighter straps and new version of Claymore it's all flipped.

What conclusions can we draw from that other than, use tighter straps and higher RAM clocks to get best performance? But your Elpida/Hynix card and my Elpida/Hynix card may perform totally differently, even using the same straps and clocks.

Oh, and I'm fed up of editing BIOSes now.....

Thanks alot, but I tried to flashed. It is work but I can't reach over 120sol even OC 1100-1570 by MSI Afterburner :(

Thanks for this info.  I was able to get +30% out of some reference 7950s with the rom posted a few pages back.  I've got this 7970 ghz laying around, is there something you'd recommend for it?
http://www.newegg.com/Product/Product.aspx?Item=N82E16814150632

What memory does it have? Some guy sent me a XFX 280X bios and I couldn't mod it because it had HYNIX BFR memory. I can only do AFR and MFR.

Yeah its Hynix AFR

Heres the stock rom if your're bored ha:  http://s000.tinyupload.com/index.php?file_id=05011924438882271719

Alright ill do it sometime tomorrow, too tired right now.

I tried the 7950 bios on 3 of my Gigabyte cards, one saw a nice improvement, up to 90+ h/s but it fails after a few minutes. The other two only hash for about a minute before crashing. Even adjusting the clocks up/down made no real difference.

Nice find though, good information!!  8)

Very Important! Notice the "02" in front of the 99 91 and 77 71 in the example above.  Make very sure that the ROM you are modifying has the "02" before changing with the quoted above.  If you have Elpida memory for GigaByte 280x or possibly even HD 7970 it will report as Elpida with Tahiti Identifier application BUT the actual ROM will have "00" instead of "02" which normally indicates Elpida memory.  If you manually modify your original ROM with the above example in that case you WILL BRICK the card.  Ask me how I know.  Fortunately these cards have switches for alternate BIOSES. whew.

One more thing, check each line of your original code carefully.  In all of my GigaByte 280xs there is a line of code left un-modified as follows:


it was between the straps 48E80100 and F0490200


That means my modded code for Gigabyte R9 280x Elpida is:

Some people don't seem to realize that ZEC mining puts very different demands on your card than ETH mining.  ETH mining is 100% memory reads, while ZEC mining, depending on the kernel code, can have more writes than reads.  When you modify BIOS straps for ETH mining, you might be using read-write turnaround timing that will cause write errors.  Then when someone gets errors or GPU hanging on ZEC mining, they blame the software when their BIOS mod is the issue.
A BIOS guru (not me) can create custom straps that tune each relevant timing value to their safe limits.
The following product brief shows a few of the parameters for DDR5 RAM.  For full details see a datasheet.
https://www.micron.com/~/media/documents/products/data-sheet/dram/gddr5/4gb_gddr5_sgram_brief.pdf

No problem thanks

You sure you had the Hynix memory? The most I can get with my Gigabyte 7950 is 130 Sols because it crashes with any memory clock higher than 1500. I think I run it at 1000/1400.





Yeah some BIOS only have 1 memory type and that prefix is always "00" other might have 2 or 3 different memory types and they are 01 02 03. It also helps to look into the BIOS file to find out which bios is which. 02 isn't always Elipda. I put that there assuming people knew this.


I agree with you however I don't know how to modify the actual timings for ZEC mining. These timings aren't even modifed for ETH, they were originally modified for Litecoin mining.

You might want to try @jstefanop  He claims to understand all the timing values included in each strap.
https://bitcointalk.org/index.php?topic=1682003.msg16896582#msg16896582

I sent the guy a message, forwarding him to this thread and see if he can help us out.

any modified bios for  powercolor r9 280x turboduo ?

The timings stilt has posted are as tight as they can pretty much get for 200 based cards. Im more involved with 300/400 based cards. Either way the gains you'll get from copying lower memory straps into higher clocked straps will get you most of the way there. Any individual timing tweaks I would do would just increase stability and maybe get a few % extra hashrate.

Pretty sure. I run ethos (linux) so GPUz doesnt do me any good. Ethos reports it as Hynix. Its not the exact model you list, its a Gigabyte Twin Frozr II but I thought Id give it a try anyway. I also planned to try the same bios on my reference Sapphire 7950's but have not made it that far yet.

I think I even went as far as to drop the clocks to 1000/1250 and it still crashed.

Twin Frozr II is usually MSI, not Gigabyte. Maybe try the MSI 280X instead.

I posted a reference 7950 BIOS a few pages back, search for it and try it. Its for a 8950 technically but I think it worked for some other individual's 7950.

Alright thanks for your input. For some of my Pitcairn cards that pretty much what I was doing taking the lower straps and using on the higher clocks, basically what we all did for the RX480s.

Youre right. I dont know why I thought that. *idiot*

I'll try the MSI 280X as well as the reference 8950 and see how they perform. I'll report back later on.
thanks!

Yeah that's what I used with 987mv and -9 power limit and just 925/1250 to run at 125h/s with not much more wattage than stock.  You can push the core and memory higher and get a little more but it is almost not worth it imo. On a Sapphire though not MSI..

I don't know technically what the difference is between the 8950 and 7950 but mine runs rock solid at 1100/1575, and peaks at 150 H/s.

However I got a few Gigabyte 7950 and those can only run at 1050/1400 since anything higher and its unstable, no idea why.

Which bios i can  use for a Sapphire 7950 vapor x , i got two, and i checked GPU-z one of the rom's is Elpida the other one is Hynix, i've read the thread but still a bit confused , could someone point which bios i can use.

RAM cooling can make a difference for overclocking.  For any new card purchases I look for the RAM to be cooled by the main heatsink, or at least a clear airflow path from the fans over the RAM.

Can anoyne help ? SAhhire dualx 7970 hynix AFR and 280X Dualx hynix.org bios
http://www.filedropper.com/sapphire7970afr
http://www.filedropper.com/sapphire280xhynix

The MSI 280X bios seems to be working fine at 1000/1575 clocks pulling 82 h/s on silentarmy v5. Im sure Ill get more once its updated. I did notice that the voltage is 1.2v which is lower than stock (1.25v) but higher than I had it before. Back in the Scrypt mining days I had flashed a bios to thee cards which lowered the voltage to 0.9 or so, this dropped my over all wattage by about 50watts per card and didnt affect the hashrate at all.

I have not tried the 8950 bios yet, that I'll do this evening.

Did you get a chance to look at this or do you think the Gigabyte 7970 rom might be ok this XFX?

same here, Sapp 7950 Vaporx (hynix afr).. dunno what bios to use.. was it posted and i missed it?

I haven't forgotten about you, just been crazy busy the last few days. I will get around too it when I got some free time. Unless someone else mods it for you.

And the 8950 bios works as well, thanks! :)

Try this:

http://www.filedropper.com/tahitimd1

this is modded from a Sapphire HD 7970 3G OC w boost, Hynix AFR.  It should actually work on your 280x as well.

@juanhunglo thanks for bios, boost 125 to 145h/s thx. so much. :D

With Claymore V7 some of my GPUs have slowed with the modified bios's, some are faster, some are faster being stock.

Best is the reference R9 290 running at 230 h/s.

Anyone else can report.

Yeah now for full speed you need more GPU power at least on 280x

1000mhz -> 163
1100 -> 180
1200Mhz -> near 200

Also looks like it more now about memory clock and bandwith then about latency

my 280x rigs are crashing but hashes @ 175 then full stop. Stable at v6 but v7 seem to use more power.

That is why also on NV 1070 on ETH, memory overclock (samsug) can work +900 (afterburner) and on zcash same card/rig only 600-650, all over is unstable

Using the same concepts applied in this thread I modded a 380 ROM in an XFX 380 DD, using Claymore 7.0 at stock 1040/1500 it is now getting 120 Sol/s.  Not a huge improvement, but about 4-5%.

Claymore V7 seems more Engine clock tuned rather than memory.

Basically all my 7950s are slower than my 7970/280x.

Memory straps do very little now. Just set your core clock as high as you can to get the most performance.

After several instacrash on v7,i undervolt and underclock. Still hashing better than v6.
http://imgur.com/a/zo9To

Now memory usage is better and for +160 sol/s you need more GPU power, duno if blace can be optimized more but for ~200sol/s you need +1200Mhz from tahiti 280x and prolly more from 7950 because it has less shaders

Yeah but running Tahiti at 1200mhz engine will require overvolting. Not worth it.

yeah, just for test...
tahiti GPU is just weak for blake and zcash to use full memory speed with 384bit bus, maybe only if more optimization can be done to blake on GCN 1.0

Damn! Those things are tanks.... too bad I dont own any.

What are you getting with your 7950's now? and what CPU? I run a Sempron with 5-6 per rig which I know hurts me some.

7950 are ~155.
7970/280x are ~175-180

Im pushing about 112 average on optiminer and ethos. Not all my cards would run on the tweaked memory timings, maybe the newest update will get me closer to that number.

Yeah I am getting 155 with a stock factory bios.

İ have the sama card. flashed twaeked bios 1100/1575 gave 160h/s is it normal?

Yeah its slower now than the 7970/280x with Claymore V7.

With previous versions, it was the fastest GPU due to the way it handled the memory operations.

Flashing the modded BIOS doesn't do anything for Claymore V7, but if you go back to ETH, you will get like 0.5-1.0MH/s boost in speed compared to stock bios.

If it hashes better on v6 then run v6 on that card alone. v7 on the other cards.

anyone with 280x elypedia ? cant find it ;x

With Claymore V7, it makes very little difference. Just mine with stock BIOS and set core clock as high as possible.

what ya suggest as core then ?

280x?

Try 1100Mhz

I can't believe my 7950's are kicking my rx 480 8gb's!?

7950 166 sol/s
rx 480 8gb 161 sol/s

Any idea what settings I should use for rx 480 gtr

Just wanted to say thanks for your effort!

The 7970 has 384 bit memory bandwidth. So the speed is high. But the RX 480 is more energy efficient.

Hi there,

I got myself a cheap MSI 290x twin frozr (gaming 4G). I get a good 210 S/s from stock bios. Can anyone tell if modded timings would improve that?

I was not able to find a suitable bios for now (I didn't want to play with bios that's not from the same model, but if someone has tried it before why not)..

Try OC your card to 1100/1450

Thanks, but Not sure about that, The few OC I tried gave me more watts and less S/s :

1100 core worked with no improvement. For memory I did not get as high as 1450 for now. 1300 memclock crashed but it was undervolted.

At stock I can get power draw pretty reasonable with -100mV, that's why I would ratther play with memory timings than overclocking. But I give it a go.

As I expected 1450 memclock crashed right away. And I don't want to overvolt. It's hot enough in there ;-)

See the main Claymore thread, there are a few individuals there with your GPU and see what they get. With V7 BIOS mods do little.

I think I will let it be like that, it's running cool enough to fit in a case and that's the major point. Because I plan to put it in an office with free electricity :-)

Thanks for trying to help.

@ lexele
i got msi 290x twin frozr gaming core 1100, memory 1500 ..stable at  ~230 H/s
maybe you have to increase the power limit in msi afterburner mine is at +15




280x core 1110, memory 1500 ..stable at 175-179.x H/s

rx 480 core 1380, memory 2200 ..stable ~186 H/s

all at stock bios.

Is there a way i can ask for modding an exotic  7990 msi bios with hynix afr , there are 2 bioses?
Can you help here

https://mega.nz/#!0xkmgBoC!eCMUCbVJuaFzwpaI1EfFMiFFuayrxPQcaYRAx1vxC5M

https://mega.nz/#!MhVWnJLY!YoFOi1RplySBPpTH36pnTqrddLuGO0w63HuEtYPQ--4
first is primary bios, second is slave!

Is this with stock bios?

as i stated above "all at stock bios"

My sapphire hd7970 GHz with modded bios gives ~184sol/s (1150/1575). Sometimes peaks at 190sol/s
Seems to be nice result

Yes its a great result but some 7970 can't run stable at 1575mhz with modded bios. Most of my Gigabyte 7970 crash at those speeds. 280x seems fine however.

Mine goes up to 1650 stable.

Think will be nice to update the 1st post with adding this bios also. Seems quite good. Running for already 4 days stable, without crashes even overclocked to 1150/1575mhz

Yeah but to get the same speed there is no need to modify the bios, you can flash back to stock and get the same speed with the same clocks.

At least thats how it was with my 7950s.

When Claymore V8 gets released I will see if they make a difference

Hi Miner Friends  :D
can someone share the original or modded bios for Sapphire r9 280x toxic with Elpida RAM?

170h/s on a reference 290? I'm seeing 200 at 1030/1250 -100mv with the stock bios, if I go to 1100/1475 it just eats power for an extra 10h/s.

So for the MSI 280x modded bios is their any gains on it from stock clocks or not worth it as my stock clocks producing 160 to 170H/s per card

i get 175 sols on 280x with not moddem bios.

no idea where to find right bios but i hear it could give 10-15 sols more per card

Reference 290 can hash at 230 h/s @ 1100/1450 with Stilt BIOS mods.

More with Hynix mem
Even more with 290X.

Getting ~226sol/s with sapphire hd7970 ghz (1150/1525), peaks at 235sol/s, modded bios and claymore's v8 (-i 6)

@adaseb, pls post your clock settings on 280x 7970's and 7950's. tnx!

With V8 everything is a mess. I had to revert most of the Gigabyte 7950 7970 GPUs back to stock because I kept getting incorrect shares or the speeds kept dropping. The ASUS 7970 and 280x seem fine but not much faster then stock bios it seems.

I think for now just stick with stock bios.

+1
No difference on 7950/280X
Can anyone report if there is a difference in 290/390X

The toxic keeps crashing at stock but flashing an asus bios seems to work but at lower settings. hashing at 200 atm. Can someone with 280x toxic post his modded bios. thanks.

My most stable cards are the ASUS 7970 and ASUS 280x.
7970 = 1100/1575 = 220 H/s
280x = 1060/1600 = 220 H/s

Both use the modded bios above, however in the Claymore forum people are getting the same speeds at stock bios.

any mode bios
for

asus 470 4gb?

Cant replicate those hashes. Highest i get is 201. higher clocks yield nothing but crashes.
I'll try to give it more power and see if it gets better. tnx

The 280x is undervolted to 1.075V, don't remember the 7970.

V8 Claymore

270x – 121 H/s       1200/1600
280x – 215 H/s       1150/1600
290x – 280 H/s       1100/1400
7970m – 100 H/s

v8 -4
r9-280x toxic 202-211     stock hynix

any modified bios available?

Is there some scores on sapphire 390 tri-x

can you give me link to download rom for 290x.
my 290x only 210 H/s but my 290 230H/s

thx so much

Hello!
Plz modify my BIOS MSI 280X 6Gb Elpdia EDW4032BABG
https://mega.nz/#fm/HFsWRKDS

With V8 and the 390X bios i'm now at 280-290h/s. Haven't checked watts yet.

This is the strap present on sapphire toxic trix. Identical to the strap below from modified asus bios.

toxic - stock mem strap

Asus - moddded stap


The hex are identical but why cant the stock 1150/1600 1.256V on toxic reach 220sol/s. (@ 201 -207sol/s only)
I settled at 1010/1375 at 1.018V hashing at 195sol/s.

Same memory type?

Yes both hynix H5GQ2H24AFR

Yeah its really strange. You sure its a 280x/7970 and not a 7950???

Its 280x. its this card.
http://www.sapphiretech.com/productdetial.asp?pid=5EBEEBEC-144A-4A68-A5DE-67E25BD9B9CE&lang=eng

I also checked the mem strap on

https://www.techpowerup.com/vgabios/157472/sapphire-r9280x-3072-140310

for this card. its the same. I think memory strap are tight right from production. 

0.5Mhs better than stock.

I found the hacked Modified Memory Strap does not affect the ZCash mining with the V8. It did with V7.

do have someone straps for the Elpida Memory (Sapphire R9 280x Toxic)

Yeah at most its like 0.5MHs or so.

Yeah unless there is some way to change the DAG slowdown.

Tahiti has TLB trashing bug for large arrays ...

@adaseb

Bit late to the game but thinking to build a cheap rig with 280x and 7970s. $80~$100 bucks a piece locally. Worth it? Reckon I can build a 6 card rig for $1000-ish and with 1.2~1.3kSol ROI in roughly 3 months at current ZEC price. I have free electricity. I could go for 290x but they go for ~$150 a piece second hand around here. Thoughts?

I didn't understand if we are able to mod the straps on Hawaii 390. Does someone have experience with it ?

Claymore 8 doesnt need modded straps really, wont change much

Thank you

Good to know. I just tried to flash all my cards. Thanks

R9 280x (Sapphire Toxic, Elpida) = 238-240 sol/s per card my maximum.

Would you upload your bios and settings?

V9 Claymore
270x – 144 H/s
280x – 228 H/s
290x – 290 H/s
7970m – 125 H/s

Are they stable? whats your clock settings and voltage on 280x?
I lowered the TDP and powertune on mine to be stable, 20 sols less than yours.

I get the same speeds as him. No idea if the 7970/280x are bios modded however, might of changed them back to stock. The 290 is stilt bios modded however.

Rock solid stable

Mine are crashing when i put higher clocks and higher voltage.
stable now at 650-660 watts system from the wall for 3 cards.

http://imgur.com/a/OOubg

Maybe you undervolt too much. I run mine at around 1 H/s per 1 Watt or so. Don't care about efficiency at the moment.

stable zec mining with my 280x:
gpu 1070
mem 1500
vddc 1.094

217 h/s
155W at wall

Yeah mine are similar at 1070 and 1100 but I get 230h/s. Maybe its your processor.

Its an old cheap Sempron. Now you motivated me to try 1 card with Intel CPU.

Yeah thats probably why. I got a rig with that CPU also, the GPU load is never 100% and its always slightly slower. Not much you can do really.

Maybe try unlocking the 2nd core, however it didn't work for me.

Indeed I got few more hashes running the miner with my i5 :)

Anyone here tried any of my roms with the XMR miner? Seems its getting more and more popular since ZEC mining profitability is down the drain.

I converted my zecs to xmr before it raised...I'm now gaining more just watching the price rather than mining :-D

I have a few very low quality Samsung memory RX 470 and they don't work with lowered timings, but those roms are really amazing! Thank you for grouping all that material together, you made our life simpler

280x consume a lot of energy. I have few of them and I'm trying to sell it.

7970/280x modified bios gets around 610h/s with XMR Claymore miner.

Doesn't really help since profitability for the day is exactly like ZEC, however much less power usuage.

what about 480 ?

can someone help me with modding this bios ?

http://www.filedropper.com/280xsapphire


its the 280x sapphire dualx (elpida)

getting like 203 sol with this bios right now

when i look up the card via gpu-z i get linked to

https://www.techpowerup.com/gpudb/b2462/sapphire-vapor-x-r9-280x-oc

but my card is

https://www.techpowerup.com/gpudb/b2463/sapphire-dual-x-r9-280x-oc

i bought this card second hand so dont know exactly has been done with this card

ps

I saved the bios with GPU-Z

Most of it was already done.

Saved with vbe to 1020/1500 at vddc 1163

Only one strap needed to be changed to be same as recommended changes in thread: https://bitcointalk.org/index.php?topic=1676474.0

here it is: http://www.filedropper.com/280xsapphiremodded

Change it at your own risk!

I cant find bios for my elpida or hynix (have both) 280x vapor-x. In first post only have memory bios for gigabyte cards. Help me where i can find bios please

my 280x with  3072 MB, GDDR5, Hynix H5GQ2H24AFR
  3072 MB, GDDR5, Elpida EDW2032BBBG
  3072 MB, GDDR5, Hynix H5GC2H24BFR


and the hex is
409C0001333133200000000084942210F05409060F0BA2010023800022AA1C00120114208A8800A 00000012006050B0C110C100D
803801015551332000000000E7AC352050550B0D1A9734030024810022AA1C004B0614209A8800A 0000001200C08151921181B11
F04902017771332000000000CE516A3B705510102BA21806004AE60022009D00640E14206A8900A 000000120150F272D3C232C14
204E0002999133200000000060881107C0540A060F0991000020410022AA1C00150014209A8840A 1000007C003010507080A100C
803801027771332000000000A5AC351F3055090C209875020044820022AA1C00440914202A8900A 5000007C00C06141A2019210F
F04902027771332000000000315A6B3A905509123629AB04006AE40022AA1C0074041420CA8900A 9020007C0171224293B2A3712
409C000355513320000000008494121240550B0C151393010020410022DD1C00430414209A8800A 00000012006050D0E13141610
803801037771332000000000E7AC352240550D0D209935030024810022DD1C004C0914209A8800A 0000001200C08171B231A2111
F04902037771332000000000CE516A3D905511122FA61906004AE60022339D00740014206A8900A 002000120150F292F3E273016

how to edit?

you have the following memory timings:

400
800
1500
200
800
1500
400
800
1500

Your BIOS has 3 different types of memory as indicated by the 7th character from the left of each string, (1, 2, 3)

So you want to modify the third, sixth, and last string AFTER that 7th character, unless you know which type of memory you have and you know that it is only the one designated by the 7th character.

Normally, there would be a timing before the 1500 string that was a little closer in speed, like a 1250 or 1375, so my best GUESS would be to copy the 800 string AFTER the 7th character over the 1500 strings for each of the three memory types.

Clear as mud, right?

Out of curiosity, what is the brand of the GPU?  Do you have a link to the original BIOS on the https://www.techpowerup.com/vgabios/ page?

https://www.techpowerup.com/vgabios/160094/xfx-r9280x-3072-140610  xfx 280x 3g

so   you mean

old
409C0001333133200000000084942210F05409060F0BA2010023800022AA1C00120114208A8800A 00000012006050B0C110C100D
803801015551332000000000E7AC352050550B0D1A9734030024810022AA1C004B0614209A8800A 0000001200C08151921181B11
F04902017771332000000000CE516A3B705510102BA21806004AE60022009D00640E14206A8900A 000000120150F272D3C232C14
204E0002999133200000000060881107C0540A060F0991000020410022AA1C00150014209A8840A 1000007C003010507080A100C
803801027771332000000000A5AC351F3055090C209875020044820022AA1C00440914202A8900A 5000007C00C06141A2019210F
F04902027771332000000000315A6B3A905509123629AB04006AE40022AA1C0074041420CA8900A 9020007C0171224293B2A3712
409C000355513320000000008494121240550B0C151393010020410022DD1C00430414209A8800A 00000012006050D0E13141610
803801037771332000000000E7AC352240550D0D209935030024810022DD1C004C0914209A8800A 0000001200C08171B231A2111
F04902037771332000000000CE516A3D905511122FA61906004AE60022339D00740014206A8900A 002000120150F292F3E273016



modded

409C0001333133200000000084942210F05409060F0BA2010023800022AA1C00120114208A8800A 00000012006050B0C110C100D
803801015551332000000000E7AC352050550B0D1A9734030024810022AA1C004B0614209A8800A 0000001200C08151921181B11
F04902017771332000000000E7AC352050550B0D1A9734030024810022AA1C004B0614209A8800A 0000001200C08151921181B11
204E0002999133200000000060881107C0540A060F0991000020410022AA1C00150014209A8840A 1000007C003010507080A100C
803801027771332000000000A5AC351F3055090C209875020044820022AA1C00440914202A8900A 5000007C00C06141A2019210F
F04902027771332000000000A5AC351F3055090C209875020044820022AA1C00440914202A8900A 5000007C00C06141A2019210F
409C000355513320000000008494121240550B0C151393010020410022DD1C00430414209A8800A 00000012006050D0E13141610
803801037771332000000000E7AC352240550D0D209935030024810022DD1C004C0914209A8800A 0000001200C08171B231A2111
F04902037771332000000000E7AC352240550D0D209935030024810022DD1C004C0914209A8800A 0000001200C08171B231A2111

like this ?

I have that same card but only with BFR memory, so my advice is a guess, but yes, what you wrote is what I would try first.  Keep in mind that it is a risk. My advice has no guarantee and you might brick your card.  Since that card has no second BIOS, it is a risk that you have to decide upon.  I personally would try it, but then again I know how to jumper a BIOS physically and boot into program mode and reset it using a USB windows 98 boot to DOS.  Good luck.

tried the 290 rom today and it would crash all instances within 5min unless I used the highest voltage rom and even then gains were not discernible against stilts good old minus .25 mining rom..

was worth a shot, do you have anything for the ghost 7970 philip is trying to sell in the classifieds?