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ATI Hd 7950/7970 bios mod thread - Page 8

post #71 of 1284
I have, from 1.6v to 1.669v, lets me break 1800MHz
     
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post #72 of 1284
Quote:
Originally Posted by robnitro View Post

I haven't found where RAM voltage is set in bioses.

You can use latest msi afterburner to set ram voltage. Next to core voltage click the arrow, gives u adjustment from 1500-1700 mv.

I haven't noticed more stability past 1600 mv. How about you?


I used Trixx 4.40 to Ram voltage I set 1600 mv I can not monitor vram so I do not pass 1600 mv.
but when crash it set to 1.551 mv tho.....
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post #73 of 1284
Quote:
Originally Posted by PedroC1999 View Post

I have, from 1.6v to 1.669v, lets me break 1800MHz

how is the temp vram ????
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post #74 of 1284
No sensors, but the card is very cool
     
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post #75 of 1284
Quote:
Originally Posted by xIC3x View Post

Yep, you're right it works.
Anyway of lowering the temp? 72c is a bit high. Maybe 1000/1350 would be a good balance?
Again sorry for writing here, but this PM limit is a pain in the backside. mad.gif
GPU-Z log file - http://wklej.org/id/1062838/ after 15 min of BF3 pistol & knife 120fps
EDIT:
Again BIG, BIG THANKS! thumb.gif
Yea upper 80s for almost all gpus, specs on most cards say 90s... Before I water cooled my cards they hit 94c running Valley, I wouldn't suggest it for 24/7, but they didn't burn up..
Quote:
Originally Posted by PedroC1999 View Post

No sensors, but the card is very cool
The PowerColor AX7950? They all have sensors but if you have other programs that use the sensors open (such as afterburner or trix) it can mess up how gpuz detects them.
Edited by MikeMike86 - 6/10/13 at 4:25pm
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post #76 of 1284
interesting stuff here. subd
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post #77 of 1284
Hi

Thanks kahboom for getting rid of the Boost on the HIS7950 but is anyone having trouble with the memory clocks?

I have flashed 1070/1400 & 1050/1400 and in benchmarks it shows 1500 memory. I am using Trixx & 13.6 beta 2 drivers, I have tried re-installing drivers and Trixx, but it sticks at 1500. At 1500 my games start to display red small pixels.

when flashed at 1070/1400 - GPUZ reported 1070/1500 as default GPU clock 1070/1400, Trix reports 1070/1400 - valley benchmark 1070/1500

???

just a shame my card doesn't like 1500
Edited by peapod - 6/11/13 at 12:45am
post #78 of 1284
Thread Starter 
Quote:
Originally Posted by peapod View Post

Hi

Thanks kahboom for getting rid of the Boost on the HIS7950 but is anyone having trouble with the memory clocks?

I have flashed 1070/1400 & 1050/1400 and in benchmarks it shows 1500 memory. I am using Trixx & 13.6 beta 2 drivers, I have tried re-installing drivers and Trixx, but it sticks at 1500. At 1500 my games start to display red small pixels.

when flashed at 1070/1400 - GPUZ reported 1070/1500 as default GPU clock 1070/1400, Trix reports 1070/1400 - valley benchmark 1070/1500

???

just a shame my card doesn't like 1500
Sorry, I made the 1070/1500 first and worked my way down, forgot to change one memory clock, Profiles have been corrected. Thx for pointing that out.
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post #79 of 1284
How to Boost feature to turn off the VGA BIOS?

The bios => Sapphire_Dual-X_7950_Boost.rom 925/1250.Mhz 1,125.v

ASIC quality 62.7%

I do not want to change anything, just the boost function bypassed HEX editor to set the reference voltage to 1.125.v

I'm sorry if I phrased a bit incomprehensible, but I speak only Hungary and I used google translator
post #80 of 1284
Quote:
Originally Posted by ericeod View Post

You can mod the vcore using the vbios editor from TechPowerUp. Here is the DC2T with 1.260v vcore (it will default to 1.26v, so you will have to use GPU Tweak if you want it lower) when running stock clocks):
http://www.overclock.net/t/1390275/wip-asus-7970-dc2t-crossflash-to-matrix-project-and-gen-info-thread/110#post_20037338

The thread itself has a lot of pooled knowledge:
http://www.overclock.net/t/1390275/wip-asus-7970-dc2t-crossflash-to-matrix-project-and-gen-info-thread


You can easily mod your own bios using the utility though. it works with the DC2T. I now run mine at 1180/1650 with 1.219v vcore.

http://www.techpowerup.com/forums/showthread.php?t=183423

Thank you very much!
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