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Cannot OC any video card on my motherboard

post #1 of 5
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Hello all. It would seem I have a problem.

I've tried several times in the past to OC my gpu with terrible results. I can get to a decent overclock on both AMD and Nvidia cards in synthetic tests and 3dmark, but after about 10-40 minutes of in-game time the drivers crash, meaning instability with the overclock. I actually ran furmark for 2 hours on my old 2GB GTX 670 @ around 1100 core clock and it was 100% stable, no artifacts, nothing. Ran 3dmark 3 times in a row, no artifacts, no crashing no anything. Load up a game, 15 minutes later, crash. Load different game, 20 minutes later, crash. Not sure what to do at this point.
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post #2 of 5
is your cpu overclock stable for games?
which drivers are you using?
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post #3 of 5
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Quote:
Originally Posted by l0max View Post

is your cpu overclock stable for games?
which drivers are you using?
CPU OC is stable (only at 4.2GHz)
I think im using 1.14 (dont quote me on that). Im using a couple revisions before the latest drivers because I heard the OCing sometimes doesnt work on the current drivers. In any case Ive tried it with the newest ones and the ones im currently using, same results. I also had the same results when I had my 7950 and when I used my dads GTX 570.
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post #4 of 5
I'm thinking the cards may be unstable, furmark doesn't test stability much at all, furmark stable may or may not last minutes in anything else. Is it stable in games with lower clocks?

3dmarks & unigine benchmarks are a good starting point, but is really the games you play that are the best stability tests. As gpu temperature increases voltage requirement can increase a bit, this may be why it is crashing after 15 minutes, either a more aggressive fan profile or lowered clocks should help.
    
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post #5 of 5
Thread Starter 
Quote:
Originally Posted by FtW 420 View Post

I'm thinking the cards may be unstable, furmark doesn't test stability much at all, furmark stable may or may not last minutes in anything else. Is it stable in games with lower clocks?

3dmarks & unigine benchmarks are a good starting point, but is really the games you play that are the best stability tests. As gpu temperature increases voltage requirement can increase a bit, this may be why it is crashing after 15 minutes, either a more aggressive fan profile or lowered clocks should help.
I've dealt with 4 cards so far that have done this. On the GTX 670 2GB if I even touched the voltage or core clock it would crash, the 7950 would last the longest at about 30 minutes before crash (in Guild wars 2, 10 in minecraft) and my current GTX 670 4GB won't do any kind of overclocking without crashing ingame. At stock clocks every card was flawless (except the 7950 but it was defective). Even underclocked all the cards crashed.
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