Memory Hardware Failure

stavros58

Honorable
Feb 18, 2012
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10,640
Hi I have 8 Gig corsair 1866 DDR3 ram in my machine and I have just upgraded it to 16 gig with the same memory so now I have 4 4gig sticks. I decided to run Prime95 on it the blend test which does lots of memory tests and it came up with a hardware failure:

FATAL ERROR: Rounding was 0.5, expected less than 0.4
Hardware failure detected, consult stress.txt file.

So I removed the two new sticks and ran it again same outcome withy the old sticks in, to cut a long story short I narrowed it down to one of the 4 gig sticks being the culprit, which I am positive about, I have also discounted the MB memory slots they are fine. However I have never had any problems with this previously eg PC crashing or applications or games crashing and the 2 older sticks are a matched pair.

So I decided to run memtest with just the faulty stick 4 gig in no problems after about 3 hours no problem and then ran all the sticks 16 gig the same about 3 hours no problem either no errors or anything dodgy. So now I'm not sure, do I RMA my old sticks for a replacement, do I send the new ones back as well and get 2 16gig matched sticks or is the Primetest just picking up on something on the one stick that isn't important. Any ideas or similar experiences anyone? Sorry I should have pointed out the faulty stick is one of the two older sticks not the new ones just purchased.
Thanks in advance

Stavros
 

stavros58

Honorable
Feb 18, 2012
80
0
10,640


Hi its not whether they are in pairs or not, its if I run the rig with that particular one 4 gig stick on its own or with the other sticks it comes up with the fault in Prime95 but not Memtest. If I leave it out then I don't have a problem at all so clearly there must be some sort of anomaly with the one stick. Sorry I should have pointed out the faulty stick is one of the two older sticks not the new ones just purchased.
 

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