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all Radeon 6950 ONLY flashing/shader unlock/overclocking info - Page 6

Poll Results: how do you have your 6950 running

Poll expired: Apr 30, 2011 This is a multiple choice poll
  • 26% of voters (24)
    flashed to 6970 bios then overclock hell yeah
  • 13% of voters (12)
    flash to 6970 bios only stock no oc
  • 40% of voters (37)
    6950 bios mod unlockshader/w overclock hell yeah
  • 14% of voters (13)
    6950 bios mod unlockshader only
  • 6% of voters (6)
    6950 stock I dont wanna play with bios or other setting (we know your lying)
92 Total Votes  
post #51 of 76
Will this one unlock?

http://www.newegg.com/Product/Product.aspx?Item=N82E16814127555
    
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post #52 of 76
Quote:
Originally Posted by PARTON View Post
Most likely yes. It seems to be first rev as seen by the cooler and it is 2GB so it should unlock. As long as it has the bios switch.

You are good to go from what I see.
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post #53 of 76
Thread Starter 
sorry I still dont have my system setup. i hope to get it up and running today or tomorrow. for more testing I will keep posted. almost done my big move
 
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post #54 of 76
I unlocked both my Sapphires on a new install...had to use the command line prompt to unlock rom first but it did work. I then crossfired them but now get weird stats when I view them in CCC. Maybe because I only have 1 monitor. Where it asks to setup crossfire the box is checked but it doesnt see either GPU. I have run 1 benchmark and haven't tried to oc any yet. When running the benchmark and using msi afterburner it looks like 1 GPU is doing all the work. Maybe thats how it's supposed to work since that is really all I've done is use 2 GPU's to make 1 GPU when I crossfired them. I'm a newb and not really educated on this enough to know what I should look for.
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post #55 of 76
I read threads about unlocking and it all says how to do it and that it might be a risk.
What is the risk? I assume you can brick it and need to send it in for repair?
If I buy an unlocked 6950 that works fine, could it ever screw up in the future if I don't touch the settings?
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post #56 of 76
Quote:
Originally Posted by swong46 View Post
I read threads about unlocking and it all says how to do it and that it might be a risk.
What is the risk? I assume you can brick it and need to send it in for repair?
If I buy an unlocked 6950 that works fine, could it ever screw up in the future if I don't touch the settings?
If you get an unlockable card you won't be able to brick it easily as it has a dual BIOS switch. Also if you unlock it and it runs fine then you are good to go. You might want to use afterburner or TriXX to set a custom fan profile so it stays a bit cooler (most of us do that). Everything should work out just fine.

Make sure to get a rev 1 2GB card with a bios switch on it and you are flying.
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post #57 of 76
Hi guys

Wanted to ask something that's been on my mind for a long time now. when you start OCing, does memory OC have a big impact on performance?

I have been tinkering with OCing and my card is benching stable at 880/1375 but not kombustor stable. on stock volts.

but can i leave memory at stock clocks and just leave my core at 880? Because I know the 6950 ships with lower grade memory compared to 6970 and the error correction thing might mask any damage i might be doing to my card's memory.
    
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post #58 of 76
Quote:
Originally Posted by colaxs View Post
Hi guys

Wanted to ask something that's been on my mind for a long time now. when you start OCing, does memory OC have a big impact on performance?

I have been tinkering with OCing and my card is benching stable at 880/1375 but not kombustor stable. on stock volts.

but can i leave memory at stock clocks and just leave my core at 880? Because I know the 6950 ships with lower grade memory compared to 6970 and the error correction thing might mask any damage i might be doing to my card's memory.
This is my experience. When I put my memory over 1375 my fps goes down in Unigine 2.5. AMD made it so the memory won't artifact, but will just re-render the bad frame over and over until it gets it right. I would say keep the ram where it is or try lowering it slightly and seeing if your frames go up (if they do your ram was not stable). Also for the core if it is not stable in games you should up the voltage and get a custom fan profile going with afterburner so you keep your card temps under 80c or just lower the core speed until it is stable.

I find the best thing is finding stability in Unigine 2.5 and then going on to play games to see if it is game stable.

I hope this helped.
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post #59 of 76
Quote:
Originally Posted by tsm106 View Post
AB is very, hmm incredibly flaky with a full 6970 bios.

Here:

You can use my file and edit it to fit your needs.

http://www.overclock.net/attachments...nly-oc.reg.txt
Is this file to unlock CCC limits on crossfire 6950? I thought I did the same thing as this file and it only unlocked my first card.
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post #60 of 76
Please someone answer this question I can't find a clear answer. Is it true you can't flash the clocks using radeon bios editor? Meaning I can't flash 880core with unlocked shaders and get rid of afterburner?
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