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Author Topic: [UPDATE] RX480 (Ref) 31+Mh, Custom Rom - VDDC OFFSET + Custom timing  (Read 229989 times)
bronsky
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April 03, 2017, 08:10:14 PM
 #1101

rom -100 mv how much tdp sir ? and eth mhs ?
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bitkuna
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April 04, 2017, 09:05:12 AM
 #1102

Tired of setting each card voltage?
Offset not availible in Your bios?

I lowered the voltage by setting the top gpu voltage to P4 or P5 (65286 or 65285) in polaris. So You get automatic a low energy high hash rate without too many try and error per card.

Polaris GPU table:
1000 65284
1050 65285
1075 65286
1100 65286
1125 65286

Set memory voltage in WattTool to 900 or lower as the low limit for VDDC.

Gives 1060W from the wall for a 7x RX480 rig @204MH/s. More MH by tuning each card's clock.

You should be able to do better than that. I've got a 7 RX480 rig pulling 207mh/s, each card at 1125/2050, pulling just 940w from the wall. I haven't even tried lowering the memory voltage.

You can't lower the memory voltage.

True. Actually, what You see in WattTool as memory voltage is MINIMAL GPU CORE VOLTAGE FOR THIS MEM FREQ. So if You set:
GPU 1120 @ 850mV
MEM 2050@1000 mV

You will get a GPU voltage of 1000mV.
bitkuna
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April 04, 2017, 09:29:26 AM
 #1103

Tired of setting each card voltage?
Offset not availible in Your bios?

I lowered the voltage by setting the top gpu voltage to P4 or P5 (65286 or 65285) in polaris. So You get automatic a low energy high hash rate without too many try and error per card.

Polaris GPU table:
1000 65284
1050 65285
1075 65286
1100 65286
1125 65286

Set memory voltage in WattTool to 900 or lower as the low limit for VDDC.

Gives 1060W from the wall for a 7x RX480 rig @204MH/s. More MH by tuning each card's clock.

You should be able to do better than that. I've got a 7 RX480 rig pulling 207mh/s, each card at 1125/2050, pulling just 940w from the wall. I haven't even tried lowering the memory voltage.

Good, which memory? Paste Your mem strap pls. and what voltages are You running (VDDC)?

Thx
mafiarob
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April 07, 2017, 10:24:48 AM
Last edit: April 07, 2017, 03:04:31 PM by mafiarob
 #1104

Ok... after reading 56 pages of posts here now i'm am very very very confused. So if some good guy can help me I'll be very grateful.
I start my first diy rig before few days ( https://bitcointalk.org/index.php?action=profile;u=979817;sa=showPosts ) and because i'm at the start i didn't touch GPUs bios or overclocking. So now i would like to push my system up. I want a stable system at max performances without the risk of burn my house (and the GPUs). I haven't problems with electricity.

My system:

GPUs: 3x Sapphire nitro+ 8GB rx480 oc (11260-01-20)
OS: Windows 10 (64bit)
GPUs drivers: 16.7.3
Mining software: Genoil claymore 9.0
Pool: ethermine.org


So how much MH/s can i have for every card for a stable and secure system (without electricity problem)? Please help me for how to mod Bios and how to overclock and tell me if i need to change drivers or mining software or pool.

Thank you very much!!!

https://ibb.co/nwaYtv

https://ibb.co/eKYiT5
nikola_p
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April 08, 2017, 11:36:11 AM
 #1105

Hello,

Can someone share good bios rom SAPPHIRE RX 480 NITRO+ for mining zcash. I could not find any roms for that GPU besides ones optimized for ethereum. Thanks in advance Smiley
coinzoid
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April 08, 2017, 01:22:17 PM
 #1106


I'm more than happy to do this for you if you provide me with the BIOSes you want editing and what voltage offset you want setting for each. Just make sure you provide me with the BIOSes that already have an offset so that I can amend it, adding in an offset for a BIOS where the offset does not exist is too much of a ball ache for me to be bothered with.

Well, I have used Jukebox Low Power bioses and not sure if they already contain a base offset.

Share it somewhere, I can soon look.

Sorry, I've missed your reply. I've used vdrop+ bios at following topic. I think it was on page 5 but now I can't find it. I've also used the bios on front page but results were better with vdrop+ bios in terms of powersave.
https://forum.ethereum.org/discussion/9650/sapphire-rx-480-nitro-oc-8gb-11260-01-20g-modded-bios-29-mh-downvolt

Please drop me a pm if you need further info.
joyrex
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April 10, 2017, 09:31:31 AM
Last edit: April 10, 2017, 09:42:24 AM by joyrex
 #1107

Hi All,

Please help me, i 'm stuck.

Does anyone use this BIOS Anoraks_Sapphire RX 480 8GB Reference Samsung_memshift.rom100 (256 KB)

I flash my cards, but now they are very unstable.
With witch BIOS i can make 29+ Mh/s on my Sapphire Radeon RX 480 reference, and to have reasonable power consummation?
Witch driver I need to use. With 16.11.1 cards are unstable.
They hangs after 2 hours working.
I try to install the latest driver, but in this case, driver do not see cards.
 
Can you please share with me our setting for mem clock, voltage etc.

Thank you in advance
coinzoid
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April 10, 2017, 10:38:03 AM
 #1108

Hi All,

Please help me, i 'm stuck.

Does anyone use this BIOS Anoraks_Sapphire RX 480 8GB Reference Samsung_memshift.rom100 (256 KB)

I flash my cards, but now they are very unstable.
With witch BIOS i can make 29+ Mh/s on my Sapphire Radeon RX 480 reference, and to have reasonable power consummation?
Witch driver I need to use. With 16.11.1 cards are unstable.
They hangs after 2 hours working.
I try to install the latest driver, but in this case, driver do not see cards.
 
Can you please share with me our setting for mem clock, voltage etc.

Thank you in advance

Please tell me exact model of your GPUs. For 11260-01-20g I've used Jukebox Low Power Bios and it hashes 29.3MH/s. Besides I'm using 16.11.5 version of AMD drivers. This version do not have a signature check so it detects gpus with custom bios.
thespycry
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April 10, 2017, 03:54:01 PM
 #1109

when overwriting bios on the 11260-01-20g Sapphire Radeon NITRO RX 480 8GB GDDR5
in which position do you have the bios switch when copying the bios from the card?
thank you
usuksobad
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April 10, 2017, 04:31:15 PM
 #1110

Eliovp last post april 5 im starting to worry, anybody knows this guy contact details?

Eliovp
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April 10, 2017, 04:47:41 PM
 #1111

Eliovp last post april 5 im starting to worry, anybody knows this guy contact details?

Haha, thank you for your concern.

I'm still alive and kicking.

I just haven't had the time to read through all of the posts/threads.

When i do, i will Smiley

Greetings!

shadabahmed
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April 11, 2017, 10:04:11 AM
 #1112

Eliovp last post april 5 im starting to worry, anybody knows this guy contact details?

Haha, thank you for your concern.

I'm still alive and kicking.

I just haven't had the time to read through all of the posts/threads.

When i do, i will Smiley

Greetings!

do u have any mod for zec mining RX470 reffrence?

Am I spamming? Report me!
mafiarob
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April 11, 2017, 07:44:01 PM
 #1113

Ok... after reading 56 pages of posts here now i'm am very very very confused. So if some good guy can help me I'll be very grateful.
I start my first diy rig before few days ( https://bitcointalk.org/index.php?action=profile;u=979817;sa=showPosts ) and because i'm at the start i didn't touch GPUs bios or overclocking. So now i would like to push my system up. I want a stable system at max performances without the risk of burn my house (and the GPUs). I haven't problems with electricity.

My system:

GPUs: 3x Sapphire nitro+ 8GB rx480 oc (11260-01-20)
OS: Windows 10 (64bit)
GPUs drivers: 16.7.3
Mining software: Genoil claymore 9.0
Pool: ethermine.org & suprnova.cc (ETH+DCR)


So how much MH/s can i have for every card for a stable and secure system (without electricity problem)? Please help me for how to mod Bios and how to overclock and tell me if i need to change drivers or mining software or pool.

Thank you very much!!!

https://ibb.co/nwaYtv

https://ibb.co/eKYiT5


Eliovp pleeeeeease help me!!!
TheRider
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April 12, 2017, 04:30:25 AM
 #1114

You're barking up the wrong tree. This thread is for flashing reference 480 cards. You cards are Nitro+, so you can't use the Eliovp's BIOS.

Try searching for PolarisBiosEditor and ATI Winflash and learned how to modify your BIOS. Cryptomined has some good Youtube tutorials you should look for.

Ok... after reading 56 pages of posts here now i'm am very very very confused. So if some good guy can help me I'll be very grateful.
I start my first diy rig before few days ( https://bitcointalk.org/index.php?action=profile;u=979817;sa=showPosts ) and because i'm at the start i didn't touch GPUs bios or overclocking. So now i would like to push my system up. I want a stable system at max performances without the risk of burn my house (and the GPUs). I haven't problems with electricity.

My system:

GPUs: 3x Sapphire nitro+ 8GB rx480 oc (11260-01-20)
OS: Windows 10 (64bit)
GPUs drivers: 16.7.3
Mining software: Genoil claymore 9.0
Pool: ethermine.org & suprnova.cc (ETH+DCR)


So how much MH/s can i have for every card for a stable and secure system (without electricity problem)? Please help me for how to mod Bios and how to overclock and tell me if i need to change drivers or mining software or pool.

Thank you very much!!!






Eliovp pleeeeeease help me!!!
666mrga999
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April 14, 2017, 02:39:21 PM
 #1115

I have RX 480 Red Dragon Powercolor 8GB samsung memory card. The best I can get is 29.6MHps with these custom memory timings. Anybody else have better experience with this card?

tnx
NomadGroup
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April 14, 2017, 08:16:48 PM
 #1116

hello i have buyed 2 power color red devil rx480 8gb and i updated whit unlocked bios downloaded from official devil's forum... i'm mining whit claymore 7.4 but i have only near 24.8 Mhs for each card... any setting mod for this card? thanks for help me

This is what I'm using for my two Red Devil 8GB RX480.

http://www.filedropper.com/powermod

This will set clocks to 1150/2150. You may find that 2200 is stable for the memory too. This is based off stock ROM, not the high power one.

Thanks this evening i try this Rom ... how many mhs have you whit this rom? Thanks

Guys how do you get 29-31mh of these cards?  Or do you have to flash the rom to get that much?  I currently got the 1200mhz-2200 MHz setting and getting 27mh max of each card.  I've tried to raise the memory to the max which is 2250 but I get a blue screen with a device stuck in thread driver message!  Please help.  Thanks!

29.7 @ 1150/2150 and 30.1 @ 1125/2200

you might get better power efficiency with 1125/2115 giving 29.65mh. My average power consumption is 72W on GPUZ so probably 110W on wall
c1oud
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April 14, 2017, 11:02:34 PM
 #1117

Guys, this rom works with Asus Strix RX 480 O 8GB? tryied to play with bios my self but do have interesting results under ethos - few cards at 28-29 and other at 18-19 Smiley all cards are same with samsung chips (Ellesmere).  Maybe any1 can comment on that or share a rom wiht undervolt included (not sure how to undervolt rx480 under ethos)? Thx in advance for you idea/roms/solutions


 
 
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bitkuna
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April 15, 2017, 07:01:27 AM
 #1118

Guys, this rom works with Asus Strix RX 480 O 8GB? tryied to play with bios my self but do have interesting results under ethos - few cards at 28-29 and other at 18-19 Smiley all cards are same with samsung chips (Ellesmere).  Maybe any1 can comment on that or share a rom wiht undervolt included (not sure how to undervolt rx480 under ethos)? Thx in advance for you idea/roms/solutions

My Custom Asus Strixx RX480 8GB Samsung.
http://wikisend.com/download/348864/Strix_Kuna_v9.1.rom

I'm running 1150/2060, of course You can go up 2100 and more. Set memory voltage to 950 with some tools. GPU voltage is automatic from P5 level.
c1oud
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April 15, 2017, 05:52:48 PM
 #1119

Guys, this rom works with Asus Strix RX 480 O 8GB? tryied to play with bios my self but do have interesting results under ethos - few cards at 28-29 and other at 18-19 Smiley all cards are same with samsung chips (Ellesmere).  Maybe any1 can comment on that or share a rom wiht undervolt included (not sure how to undervolt rx480 under ethos)? Thx in advance for you idea/roms/solutions

My Custom Asus Strixx RX480 8GB Samsung.
http://wikisend.com/download/348864/Strix_Kuna_v9.1.rom

I'm running 1150/2060, of course You can go up 2100 and more. Set memory voltage to 950 with some tools. GPU voltage is automatic from P5 level.

did u try it on ethos as well? it seems that i get somekind errors with this rom... seems like it doesn't understand decreas of voltage of 950mV at 2000Mhz... or may be there is another issue?


 
 
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bitkuna
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April 16, 2017, 06:13:51 AM
 #1120

Guys, this rom works with Asus Strix RX 480 O 8GB? tryied to play with bios my self but do have interesting results under ethos - few cards at 28-29 and other at 18-19 Smiley all cards are same with samsung chips (Ellesmere).  Maybe any1 can comment on that or share a rom wiht undervolt included (not sure how to undervolt rx480 under ethos)? Thx in advance for you idea/roms/solutions

My Custom Asus Strixx RX480 8GB Samsung.
http://wikisend.com/download/348864/Strix_Kuna_v9.1.rom

I'm running 1150/2060, of course You can go up 2100 and more. Set memory voltage to 950 with some tools. GPU voltage is automatic from P5 level.

did u try it on ethos as well? it seems that i get somekind errors with this rom... seems like it doesn't understand decreas of voltage of 950mV at 2000Mhz... or may be there is another issue?

Don't know for ethos, in windows use WattTool and there set 950 or less for memory voltage for each card, manually and later, if stable with a batch file.
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