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New Opteron 144 trying to hit 2.8 - Page 2

post #11 of 20
Quote:
Originally Posted by Jazino
im getting that fluctuation from cpuid, is that a good monitor or should i download something more accurate.
I think all of the programs are going to more or less read very similar.
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post #12 of 20
Thread Starter 
yeah, ill try a different psu sometime. i got it to 2.9 and ran aq3 and played fear for about a half hour so i could probably bench around there but it dies in occt as soon as it starts the actual test.
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post #13 of 20
Quote:
Originally Posted by Jazino
yeah, ill try a different psu sometime. i got it to 2.9 and ran aq3 and played fear for about a half hour so i could probably bench around there but it dies in occt as soon as it starts the actual test.
It might just be OCCT man, some systems are like that. Try SP2004/Prime and see what happens.
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post #14 of 20
I don't really quite trust stress tests. I tried running prime95 on my opty when it was at 2.6 and it failed in like 2 seconds, yet I could play call of duty 2 fine. Right now, I'm backed of too like 2.2 I think and I still fail prime95 in 9 min, but I just got out of playing CoD2 for 2 hours.
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post #15 of 20
Thread Starter 
yeah im not worried about 8 or 24 hours of prime, if it doesnt shutdown while im gaming or benching im fine. i think ill try 3dmark 05 and see what happens. what about the variance in vcore. it was 1.488 to 1.568. is that bad?
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post #16 of 20
That's a fairly big fluctuation, and it probably would effect your oc a little bit. I just noticed, you have a NUUO, which should be one of the most stable PSUs there is. That's rather odd, maybe you want to post in the PSU section and talk about your voltages, cus that thing shouldn't change at all. Maybe you can RMA it, depending on what people say about it.
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post #17 of 20
I had the same problem, but when I got new ram it went away.
post #18 of 20
Thread Starter 
i had the ram on a divider of like 133. it was running at 199.9 at 2.8GHz. could the divider be the problem?
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post #19 of 20
make sure your memory is at least at its default speeds. Sometimes lower can cause errors. OCCT is a very picky test, ive had my chip be prime stable, but still error on occt. I'm guessing its the memory or the PSU. You should not be fluctuating that much.
Use motherboard monitor to measure the fluctation of your vcore over a long period of testing. It shouldn't fluctuate that much, maybe .02-.03 maximum. Any more than that and the overclock wont have the power needed to maintain without errors.....
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post #20 of 20
Thread Starter 
well i am not stable here but it booted, couldnt even get the sandy to boot past 2.8. http://valid.x86-secret.com/show_oc?id=81425

and i think my third ram timing is set to 6 instead of 8 so ill see if i can change that.

hmm on closer inspection could this be a problem?
manufacturers ram timings:2.5 8-4-4
timings reported by cpuid:2.5-3-3-6
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