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System Hard locking after GPU OC

post #1 of 5
Thread Starter 
Ok....I am trying to find the max stable OC for my 6950. I am running a modded 6950 bios with the shaders unlocked. I currently have my core running at 900 but if I go up to 910 and run a benchmark my system hard locks. What does this mean? Do I need more voltage or does it mean my core just cant take that speed? It runs great at 900 with no problems. Weird that just 10 more mhz would cause the system to lock up solid.
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post #2 of 5
Think you might have to re-flash it with a different 6970 BIOS than the one your previously used Some BIOS's might not work correctly, some might
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post #3 of 5
voltage. assuming acceptable temps, once you start reaching the cards core limit its going to show artifacts.
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post #4 of 5
Thread Starter 
Quote:
Originally Posted by Atomfix View Post
Think you might have to re-flash it with a different 6970 BIOS than the one your previously used Some BIOS's might not work correctly, some might
I am using a 6950 bios with the shaders unlocked not a 6970 bios. I tried the 6970 bios but i got some wierd stuff going on after about a week of running it like that. Flashed back and unlocked the shaders and no problems. Now if I could just overclock this thing past 900.
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post #5 of 5
I get several hard lock when overclocking my GPU. Increase the voltage to 1.3v in AfterBurner and increase your core by 10 increments. Play a game to see if it still hard lock, and if it do, lower the core and memory.

My max overclock is 960/1400 @1.3v. Crysis is a really good game to test your GPU. It uses 99% of the GPU while you're gaming.
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My System
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