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Prime 95 27.7 or 27.9

post #1 of 41
Thread Starter 
Which version should I be using? AFAIK, the 27.9 is not available as a download on the official site of Prime95.
post #2 of 41
27.7 includes AVX, so I think it's fine to use that one. I don't know what 27.9 changed, but the move to 27.7 was the big one. I'd wait until 27.9 was up at Mersenne before I'd switch.
post #3 of 41
Thread Starter 
Yeah, I'm also reading that there are problems with the 27.9.

Regarding Prime95 vs. IBT, what is your comment on them?
post #4 of 41
Use 27.7. It's been a great stabilty tester for SB and up chips on the Intel side.
    
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post #5 of 41
Thread Starter 
Quote:
Originally Posted by MrTOOSHORT View Post

Use 27.7. It's been a great stabilty tester for SB and up chips on the Intel side.

Ok. What do you think of IBT and Prime95 though? I can be stable for 24hrs Prim95 custom blend 95% memory 15mins interval per FFT but as soon as I run IBT I get 0x101 BSOD.
post #6 of 41
Thread Starter 
Quote:
Originally Posted by MrTOOSHORT View Post

Use 27.7. It's been a great stabilty tester for SB and up chips on the Intel side.

Ok. What do you think of IBT and Prime95 though? I can be stable for 24hrs Prim95 custom blend 95% memory 15mins interval per FFT but as soon as I run IBT I get 0x101 BSOD.
post #7 of 41
Well I'd say you're never truly stable even after 24 hours of prime or all tests used. Myself would think you're ok with the just the prime run for stablity. For me IBT and LinX are easy to pass, but prime95 27.7 is tougher by alot.
    
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post #8 of 41
Personally, I've never run into a situation where IBT would pass but Prime95 would fail (using 20 passes of Very High for IBT) but others have had the opposite experience. I think the generally accepted method is to use IBT for initial stability checking, since it is faster, and then once you get IBT stable run Prime95 for however long (8 or 12 hours, usually).
post #9 of 41
On my 930 linx harder to pass then prime 95. but that was a few years ago. ran prime 95 for 24 hours but fail in linx in first 10 min.
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post #10 of 41
Thread Starter 
As I expected, different people with exactly the opposite experience. If IBT fails, what usually is the reason? Is it always too low vcore?
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