BIOS and mods for Sapphire RX 480 8gb Micron Memory - 0.25 ETH reward for help

[GPUM1ner]

Thanks doktor83!

Your rom allowed 4x Sapphire Nitro 480 8GB reach 29.3MH/s (Micron).

I tweaked the settings a bit, but I mostly needed the straps as PBE wouldn't work.

1100 GPU/1000 mV
2050 Memory/1000 mV

Fan minimum 50% makes them run smooth.

I can't confirm his rom is best, but at least the straps are changed. What strap mod did you perform?

how lucky you are
i got artifacts on doctor83's bios

I think Micron might be hit or miss maybe?
If it is of any use, the ASIC qualities in GPU-Z are 70.4%, 68.7%, 68.3%, 79.5%.

Has been running stable 29.3MH/s for 3 days now. Lets see if it crashes eventually.

[1715032875]

1715032875

[1715032875]

1715032875

[1715032875]

1715032875

[almirfiorio]

For all of you guys i made a custom bios from the one in the main post.
You won't need any wattool,wattman,afterbuner,trixx or any other software of that type, i set everything in the bios like Insider00 did with wattool, so :

Def gpu clock : 1144 Mhz
Def mem clock: 2150 Mhz

Mem straps 1625
VDDC (gpu voltage) set at 925mV
TDP 120w
Set fans to hold cards at about 70c, so you don't need fan regulation either

Before flashing remove ALL software that you used before for manipulating (wattool,wattman,afterbuner,trixx...).
Then clean all video drivers with DDU.
Flash bios. Reboot, reinstall video drivers.
http://www.filedropper.com/s480-8gb-micron

Dear Doktor83

     Im have Sapphire RX 480 Nitro (not Nitro+) with elpida memory . and my card have 4gb

you can help me how im can modify bios tor reach 30mh/s?

What values im need to change???

See my bios picture in polaris



Thanks
Almir

[almirfiorio]

Dear Densets

im can use in Sapphire RX480 Nitro 4GB with elpida memory (not Nitro+) ?

Thanks
Almir

Here are 3 bioses modded for you.
1625 Memory straps https://www.dropbox.com/s/qs3av04vv5e1skn/micron4802-1625%20Straps.rom?dl=0
1700 Memory straps https://www.dropbox.com/s/292axebpcc3pghb/micron4802-1750%20Straps.rom?dl=0
1500 Memory straps (may not work at all) https://www.dropbox.com/s/0x6767hd9idlnxm/micron4802-1500%20Straps%20May%20noy%20work%20under%20load.rom?dl=0

This is the usable Micron and elpida version of polaris bios editor https://www.dropbox.com/s/5r3z83yg15arymq/PolarisBiosEditor-micron-elpida.rar?dl=0

can yo reupload this?

[lazyboi]

For all of you guys i made a custom bios from the one in the main post.
You won't need any wattool,wattman,afterbuner,trixx or any other software of that type, i set everything in the bios like Insider00 did with wattool, so :

Def gpu clock : 1144 Mhz
Def mem clock: 2150 Mhz

Mem straps 1625
VDDC (gpu voltage) set at 925mV
TDP 120w
Set fans to hold cards at about 70c, so you don't need fan regulation either

Before flashing remove ALL software that you used before for manipulating (wattool,wattman,afterbuner,trixx...).
Then clean all video drivers with DDU.
Flash bios.
Reboot, reinstall video drivers.

Test.

Enjoy

http://www.filedropper.com/s480-8gb-micron

_______________________________________________________________________________ ______________________________________
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hey DOk

what if i brick my card ?
can it be fixed by just restoring the old rom  ?

card = Sapphire RX 480 8GB NON PLUS MICRON

btw my current settings are in this link

https://lazyboi-1.tumblr.com/image/160311333430


getting 24-25 in dual mining and in single mining getting 26 mh stable  without BIOS MOD

[doktor83]

Stay with wattool if you are happy with it

[lazyboi]

Stay with wattool if you are happy with it

i've decided to get 5 more cards rx 470 8gb's since this is the cheapest  card i can get in my country

suggestions accepted

[dygus]

What's the difference between hynix and micron memory and how to check, which I have?

[doktor83]

What's the difference between hynix and micron memory and how to check, which I have?

Different manufacturers.
You can see in gpu-z

[dygus]

What's the difference between hynix and micron memory and how to check, which I have?

Different manufacturers.
You can see in gpu-z

Thank you. Now I know I have Micron. Which one BIOS is correct one to download and where can I download it?

[doktor83]

Best is to modify your own bios, less chance to brick card.

[carlosescuela]

Here are 3 bioses modded for you.
1625 Memory straps https://www.dropbox.com/s/qs3av04vv5e1skn/micron4802-1625%20Straps.rom?dl=0
1700 Memory straps https://www.dropbox.com/s/292axebpcc3pghb/micron4802-1750%20Straps.rom?dl=0
1500 Memory straps (may not work at all) https://www.dropbox.com/s/0x6767hd9idlnxm/micron4802-1500%20Straps%20May%20noy%20work%20under%20load.rom?dl=0

This is the usable Micron and elpida version of polaris bios editor https://www.dropbox.com/s/5r3z83yg15arymq/PolarisBiosEditor-micron-elpida.rar?dl=0

dude, download link dont work!  

[eviltapki]

hey guys

First of all, thanks for the BIOS Doktor83.

I have a strange issue:

Doktor83's bios has the temp settings:

med temp - 45
high temp - 56
max temp - 73

And in MSI Afterburner i can see the max temp limit is 65. Of course after my cards reach 65c - reboot.

But the original bios:

med temp - 65,
high temp - 85
max temp - 109

AS for me, that is some kind of bug. Any suggestions ? Should i change the temp settings via POlaris and than flash the cards again?

Thanks!

[doktor83]

that is what you should do.

[willi9974]

Hello,

i have Sapphire RX 480 8GB Micron (NON PLUS)

It is better to copy the 1500 strap or a other one? what is the diffrent and what is the best bios mod for my card?

Update:
i have this night moded the bios and set Mem: 1160 Powerstage: 3 Memory: 2150 and get  29,4 mhs :-)

Link: http://1stminingrig.com/best-bios-rom-sapphire-nitro-rx-480-8gb-oc-micron-memory-30-mhs/

Regards
Willi

[Vaas]

For all of you guys i made a custom bios from the one in the main post.
You won't need any wattool,wattman,afterbuner,trixx or any other software of that type, i set everything in the bios like Insider00 did with wattool, so :

Def gpu clock : 1144 Mhz
Def mem clock: 2150 Mhz

Mem straps 1625
VDDC (gpu voltage) set at 925mV
TDP 120w
Set fans to hold cards at about 70c, so you don't need fan regulation either

Before flashing remove ALL software that you used before for manipulating (wattool,wattman,afterbuner,trixx...).
Then clean all video drivers with DDU.
Flash bios.
Reboot, reinstall video drivers.

Test.

Enjoy

http://www.filedropper.com/s480-8gb-micron

worked great but my 480 nitro still keeps the fan at 0% any insight in what might be happening? also the newest driver didn't recognize it, can the ATI pixel clock patcher solve this or not??

[mattmathison]

Hello guys!

A little help needed here
My card is an ASUS RX470 STRIX GAMING 8GB OC with micron memory, and I'm doing dual mining ETH+DCR with claymore. And using afterburner for tuning.
I tried a lot of variations but my best was 25MH/s ETH + 780 DCR. (or 26MH/s single)
drivers: 16.9.1, 16.9.2, 17.5.2
gpu: 1000, 1025, 1040, 1050, 1100, 1150, 1200, 1250
mem: 1750+
straps: 1500, 1625, 1750

At the moment I'm mining with 16.9.2, 1100gpu, 1900mem, 1750 straps (this seems stabile and the best so far)
Highest was 28.5MH/s with 17.5.2, 1200gpu, 2100mem, 1750straps, but GPU failed over and over again.

Also tried WattTool, and copied the settings Insider posted, but could not get better result at all, and most times my pc crashed.

There you go
Follow this steps in screenshots

-Wattool Setting   http://prnt.sc/ep7nfg , http://prnt.sc/ep7ly0
MODDED BIOS : https://www.dropbox.com/s/p87dtcrv5yh733u/m.rom?dl=0
Wattool download
( http://www.overclock.net/t/1609782/watttool-a-simple-tool-that-combines-overclocking-with-vrm-monitoring-tweaking-for-rx-400-series )

This u will have to keep in start.bat

Wattool commands to write in start.bat

TIMEOUT 2
start WattTool-0.92.exe 1 2 3 4 5 6
TIMEOUT 5

I have sent everything to BuriedONE Blockchain Youtube channel, he will make video for it soon
Good luck

My goal would be 28-30MH/s if possible. I would be glad if you guys could help me.
Original rom: https://www.dropbox.com/s/w51ulftpsbn7wtz/asus_RX470_strinx_8gb_oc_original.rom?dl=0
1750: https://www.dropbox.com/s/snvm4a5nbwyaibl/asus_RX470_strinx_8gb_oc_0.1750_mod.rom?dl=0

Thanks!

[Oracle1]

i all i have managed to get polaris bios editor to open my micron  memory on my rx470 MSI Gaming X 8gb and it has given me the following values


0:1500 7770000......
0:1625 7770000.....
0:1750 7770000......
0:1875 9990000......
0:2000 9990000......

can anyone give some advice as to the optimum memory straps and where to duplicate them?


any help greatly appreciated

[Mattthev]

i all i have managed to get polaris bios editor to open my micron  memory on my rx470 MSI Gaming X 8gb and it has given me the following values


0:1500 7770000......
0:1625 7770000.....
0:1750 7770000......
0:1875 9990000......
0:2000 9990000......

can anyone give some advice as to the optimum memory straps and where to duplicate them?


any help greatly appreciated

PM, me if you want bios mod.

My goal would be 28-30MH/s if possible. I would be glad if you guys could help me.
Original rom: https://www.dropbox.com/s/w51ulftpsbn7wtz/asus_RX470_strinx_8gb_oc_original.rom?dl=0
1750: https://www.dropbox.com/s/snvm4a5nbwyaibl/asus_RX470_strinx_8gb_oc_0.1750_mod.rom?dl=0

Thanks!

PM, me.

[Intellion]

Guys, I'm in search of advice. I have a Sapphire Nitro rx480 card (non plus model, Micron memory) 11260-20-20G. All the modded ROMs I've ever tried make the Claymore's miner work for about a minute or two at 30+Mh/s before crashing the Windows 10. The recent one from this thread (thank you, doktor83!) worked for about 15 minutes at 29-30Mh/s before crashing the drivers and rebooting. So, can't make it work in stable mode.

I also have a strange problem - the Watttool 0.92 doesn't show anything for my card, everything is zero. Also, neither Trixx nor the GPU-Z show the GPU temp. The latest version of Windows 10 with Crimson 16.9.1 drivers (newer drivers do not recognize the card with the custom bios for some reason).

Also, what is the reason that some of the modded ROMs are 256KB when the original ROM dump is 512KB?
I need to know if it is the problem with the card or I'm doing something wrong. The card is hashing at 25Mhs on default ROM (see the link below for the original ROM).

http://wikisend.com/download/708788/RX4808GBOCnonplusOriginal.rom

[Mattthev]

Guys, I'm in search of advice. I have a Sapphire Nitro rx480 card (non plus model, Micron memory) 11260-20-20G. All the modded ROMs I've ever tried make the Claymore's miner work for about a minute or two at 30+Mh/s before crashing the Windows 10. The recent one from this thread (thank you, doktor83!) worked for about 15 minutes at 29-30Mh/s before crashing the drivers and rebooting. So, can't make it work in stable mode.

I also have a strange problem - the Watttool 0.92 doesn't show anything for my card, everything is zero. Also, neither Trixx nor the GPU-Z show the GPU temp. The latest version of Windows 10 with Crimson 16.9.1 drivers (newer drivers do not recognize the card with the custom bios for some reason).

Also, what is the reason that some of the modded ROMs are 256KB when the original ROM dump is 512KB?
I need to know if it is the problem with the card or I'm doing something wrong. The card is hashing at 25Mhs on default ROM (see the link below for the original ROM).

http://wikisend.com/download/708788/RX4808GBOCnonplusOriginal.rom

Bad drivers or you too much overclocked cards, probably memory errors.
You better not use modded bios you can do your own, much safer. Link to guide in my signature.