Signifigance of both Cores Failing Prime

[robjulo]

Is there any signifcance to both cores failing prime at the exact same time (1hour and 12 minutes) with the exact same failure during the torture test.

 

I had affinity set properly for each core so the CPU was being 100 percent utilized, I was using a memory size of 900M for each.

[SpeedEuphoria]

were you oc'ing? what was your speed and voltage?

I run 2.4 all day at stock v prime stable x2 for 19hrs I know I need more v for 2.5( getting ready to circumsize the cpu and turn it up since core1 fails while core0 is good)

 

well it could be your mem or psu crapping out at a certain point if you had a log of the voltages from mbm5 or some other program you could rule out that

 

or you could try to up the cpu v to see if it was just the cpu(which would mean your cores are very similar in ability)

 

run some other benches to test other things

[KimTjik]

Is there any signifcance to both cores failing prime at the exact same time (1hour and 12 minutes) with the exact same failure during the torture test.

 

I had affinity set properly for each core so the CPU was being 100 percent utilized, I was using a memory size of 900M for each.

In a way you could be pleased. Some guys do experience how one of the cores evidently being able to go really high, but the other one is holding back. I suppose that's more frustrating, than having both being equally good or bad (ok, hopefully not bad ). This sad assuming you're talking about an OC:ed system.

[KimTjik]

One question: why do you set both cores to use so much memory? Maybe I'm a total n00bie to Prime, but for me it seems a bit too optimistic or over the top, and not very usefull. The basic setup I have for a torture test with a lot of stress to the memory takes up 766mb. I ask this not to critize, but I would like know.

[Laughing Man]

I think that's to much too at 900 each it would look like they start using the paging file... 700 should be good for each core.

[robjulo]

Ok. I will lower the memory, I thought I was suppose to use take my total ram and divide by 2, so I did that and went with a little less.

 

Rig is not overclocked. It is running stock speeds. I had it stable previously but was only using one instance of Prime. With two instances and affinity set, it is failing again.

[robjulo]

I think that's to much too at 900 each it would look like they start using the paging file... 700 should be good for each core.

 

Laughing Man - your rig is almost the exact same as mine. Are you stable and if so do you mind to give me your voltages and memory timings?

[robjulo]

I'm a bit of a newbie at this and haven't built a rig in a long time.

 

Could telling prime to use such a large memory chunk hence the page file cause prime to error or is that just wishful thinking?

[KimTjik]

Excuse me if am asking the wrong question, you might have been over this already: if we forget about Prime for a moment, have you run Memtest thoroughly to make sure they're running smoothly? To confirm this would at least make the troubleshooting a bit easier.

[lowboy]

just run again with 800mb may crap at same place may not, it is unusual for both fail at same time.