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Unlock your ATI 6950 to a 6970 Thread

chart.jpg


Did some testing in heaven 2.5 @ 1920x1200 default settings.
Default CCC settings also


What you will see on line two, is when you have a registry lock on your cards. What i mean is by that is you need to disable ULPS power saving modes in registry to allow something like AB to oc both of your cards above 840/1325Mhz without BSOD for you :D

by adding +20 on your powerprofle in CCC i gained .1 fps in max fps area, nothing else. Prollt help stabilise if you push above 880/1325.

http://3dmark.com/3dm11/889599
p9026 with a gfx score of 9324
 
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I've only unlocked the shaders as didn't want to have memory problems.
Can i just use ati override to overlock or is afterburner so much better for the job.
 
ai you can, but you may be locked at 840max and 1325max with ati override as I was for awhile.
I only saw 3 fps difference between stock 6950 speeds and ati OD at 840/1325.
6 fps more than stock at 6970 clock speeds.
 
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quickly going to ask again, do you think a OCZ 700w psu paired with 2 6950's and a overclocked i5 be able to handle the graphics cards flashed to 6970s?
 
tom91x91 said:
quickly going to ask again, do you think a OCZ 700w psu paired with 2 6950's and a overclocked i5 be able to handle the graphics cards flashed to 6970s?
Click to expand...

as you are not touching voltages with a shader unlock, as long as your PSU is rated for xfire 6950 cards all good boss.

As for drivers, not sure, I am running the latest cata drivers with no issues (now) :D
 
]MadBoy[;18748126 said:
as you are not touching voltages with a shader unlock, as long as your PSU is rated for xfire 6950 cards all good boss.

As for drivers, not sure, I am running the latest cata drivers with no issues (now) :D
Click to expand...

cheers mate, its the ocz 700w stealthxstream, which from reviews seems to be able to handle an extra 100w ontop of that anyway! ocuk wouldnt put it in their prebuilt if it couldnt handle crossfire i guess :)
 
does the original method still work? Thinking about flashing my two xfx 6950's, not interested in oc'ing, but unlocked shaders should give a few more fps.
 
Does the original method on the first page still work? Been reading a lot about problems with memory? Is there any easier methods?

Thanks :)
 
How do i do this for two cards running in crossfire? Would like to try this today :) (although 2 6950's are already giving me insane performance)
 
ok i downloaded the flash tools from guru3d is there any dangers doing that? They're not the ones that can damage memory are they? Will it flash both my cards?

Thanks
 
Don't flash them with the 6970 BIOS tom, that could damage the memory.

You need to look for the 6950 BIOS with shaders unlocked, I'll try and link you.
 
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