Use the basic OCCT test (not linpack) in two flavors:
*small fft - stresses the CPU
*large fft - stresses memory

See which fails, of if both fail see which is first. If it's the large fft test that fails then the problem is related to the memory settings (loosen timings, decrease freq or increase Vmem to stabilise).

 

now ist says error on core 0 ,, if ill raise the voltage and it will be stable its ok? my cpu is stable? and whats withe the linpack?

 

friends please help me with that linpack error ! , it steel failing after several voltage tweaking. im wating for your advices

 

dragosmp gave you good advise. Follow his suggestion and post your results.

 

i dont realy understand what he ment. there are two types: occt linpack test and occt cpu. when i test on linpack it says linpack error and wite the cpu test it says error on core 0 .

 

CPU:OCCT

Test Mode: Small Data Set, Medium Data Set, Large Data Set

Run them one at a time small, then Large.

Or you could just run Prime95 Small fft, then Large fft. Pretty much the same except OCCT gives you options for duration.

 

Quote:

Originally Posted by ~sizzzle~ CPU:OCCT Test Mode: Small Data Set, Medium Data Set, Large Data Set Run them one at a time small, then Large. Or you could just run Prime95 Small fft, then Large fft. Pretty much the same except OCCT gives you options for duration.

he failed at bothe of them . it says error detected on core 0 . what is it if not the cpu voltage?

 

All the power savings stuff (eist, speedstep, c-state) disabled ?
spread spectrum disable ?

I'd go ahead and download Prime95 and run it. Shouldn't make any differnce but just in case it is a glitch or corruption in OCCT itself.

If failing small it is nearly always the CPU rather than the uncore. Does it fail at stock settings. If so as a last resort I'd check for bent pins.

What are your temps doing ?

I'll bow out and hopefully someone with more 775 knowledge will come along with a simple fix for you. Good Luck on getting it straightened out.

 

If it fails, It's most likely not stable. There are a host of other settings besides vcore that may need to be tweaked. Do a search on your MB and see what others have used maybe that would help.

And read the guilds posted here they are very helpful, as not all systems OC the same.

 

I know we sometimes become attached to certain stress tests. But if you could run Prime95 which is simply explained, to where even a child could understand, it can often indicate the cause for failure.

For me Prime is a troubleshooting aid as well as a stress test. Let us help you by running Prime95 Small FFTs and assuming a pass then run Blend. Also, while running Prime, I run Real Temp at the same time. Tell us the temps for each core while stressing. You will need to run Prime for minimum 8 hours for each test.

And lastly, if you could send along a shot of your current OC BIOS settings, RAM volts and timings 1T or 2T, CPU freq and voltage and MCH voltages it would be helpful.

 

I have one week stresed every day using tests have pass links prime super .my pc at 4 ghz stable. yesterday yestarday i run occt and gave me error to core 2

maube the cpu need a relax cause of all these tests ? i would like to hear your opinion guys thanks in advance ( links 500 times passed , prime95 priority 10 passed 25 hours super pi 32mb ) expept occt