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What to make of this Prime95 behaviour?

post #1 of 5
Thread Starter 
Hi guys,

I decided to reduce the overclock as seen in my sig rig because it is getting hotter here in Australia and I could barely cope with the heat that it was producing.

I am running it at a FSB of 240Mhz (allowing my 1600Mhz rated RAM to run at 1600Mhz - I can't be bothered overclocking it or tightening timings). This means my CPU, which is a 1055T, will run at 14x 240 = 3360Mhz.

So last night I was doing some testing in Prime95, I had the CPU at 3360Mhz with a vCore of 1.25v, the RAM at stock and the NB below stock. I was doing a small FFT test in Prime and left it running overnight for about 8 hours.

I woke up, turned on my screen and saw that there were no errors in any workers. So I started scrolling up to the top of worker 1 to have a look at all the tests. After about 10 seconds of doing this I got a BSOD. This has never happened to me before when using Prime, and I was just wondering what to make of this? It can run Prime for 8 hours but crashes when I move my mouse? Is it stable or not?

Cheers.
    
CPUMotherboardGraphicsRAM
1055T [3.82Ghz @ 1.4v] Asus M5A97 EVO [NB - 2.45Ghz @ 1.275v] MSI GTX 570 Twin Frozr II @ 850core 2000mem 1.05v G.Skill Ripjaws 8GB [1450Mhz 9-9-9-24-2T (CBF t... 
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1.5TB Samsung + 2x 1TB WD Caviar Blue Hyper 212+ Windows 7 Professional 64-bit 21.5" Samsung 1920x1080 
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Razer Lycosa Corsair HX650 Thermaltake V3 Black Edition Razer Deathadder 
Mouse PadAudio
Razer Goliathus Asus Xonar DG + Sennheiser HD 515 
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CPUMotherboardGraphicsRAM
1055T [3.82Ghz @ 1.4v] Asus M5A97 EVO [NB - 2.45Ghz @ 1.275v] MSI GTX 570 Twin Frozr II @ 850core 2000mem 1.05v G.Skill Ripjaws 8GB [1450Mhz 9-9-9-24-2T (CBF t... 
Hard DriveCoolingOSMonitor
1.5TB Samsung + 2x 1TB WD Caviar Blue Hyper 212+ Windows 7 Professional 64-bit 21.5" Samsung 1920x1080 
KeyboardPowerCaseMouse
Razer Lycosa Corsair HX650 Thermaltake V3 Black Edition Razer Deathadder 
Mouse PadAudio
Razer Goliathus Asus Xonar DG + Sennheiser HD 515 
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post #2 of 5
If it crashed, it's unstable. To be honest, if you're reducing your overclock, rather than going backwards and reducing settings, I'd reset everything to factory defaults and work like that. Much easier to figure out what's actually the culprit.
post #3 of 5
My CPU is rated on 14X multiplier and i'm never going to overclock it on stock voltages with 240 FSB. It's waaaay to low for this rate. You need at least 2x times voltage increase on CPU and CPU NB.
    
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Hard DriveOptical DriveCoolingOS
Seagate Barracuda 1TB 7200RPM 32MB Sata 3 6GB/s Sony Optiarc 5260s 24X DVD+/-RW Cooler Master Hyper TX3 / AMD Stock fan as VRM ... Windows 7 Ultimate x64 
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post #4 of 5
Tell me about it , its going to be 36c in sydney today !! would be a scorcher up in brissy .

i much like my winter temps better =(

I would say stable , if you can run p95 for 8 hours overnight with no errors its stable .. not rock solid but if your using your cpu for intensive work for long periods of time it might not be .

for a gaming rig 8 hours p95 is more then enough .
Edited by Xristo - 11/13/11 at 1:27pm
    
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post #5 of 5
Thread Starter 
@E-Peen

But I suspect that if I didn't touch it and let it running for another 8 hours it would have been fine. And I have reset all of my components? That's what I had in the OP, I set my RAM to stock and the NB below stock (1920Mhz). And I'm not going to start from 2800Mhz on the CPU and work my way up, it takes too long. I figured if I start at my target and use a medium amount of voltage I can figure out where to go from there.
Edited by Mr. Moon - 11/13/11 at 1:29pm
    
CPUMotherboardGraphicsRAM
1055T [3.82Ghz @ 1.4v] Asus M5A97 EVO [NB - 2.45Ghz @ 1.275v] MSI GTX 570 Twin Frozr II @ 850core 2000mem 1.05v G.Skill Ripjaws 8GB [1450Mhz 9-9-9-24-2T (CBF t... 
Hard DriveCoolingOSMonitor
1.5TB Samsung + 2x 1TB WD Caviar Blue Hyper 212+ Windows 7 Professional 64-bit 21.5" Samsung 1920x1080 
KeyboardPowerCaseMouse
Razer Lycosa Corsair HX650 Thermaltake V3 Black Edition Razer Deathadder 
Mouse PadAudio
Razer Goliathus Asus Xonar DG + Sennheiser HD 515 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
1055T [3.82Ghz @ 1.4v] Asus M5A97 EVO [NB - 2.45Ghz @ 1.275v] MSI GTX 570 Twin Frozr II @ 850core 2000mem 1.05v G.Skill Ripjaws 8GB [1450Mhz 9-9-9-24-2T (CBF t... 
Hard DriveCoolingOSMonitor
1.5TB Samsung + 2x 1TB WD Caviar Blue Hyper 212+ Windows 7 Professional 64-bit 21.5" Samsung 1920x1080 
KeyboardPowerCaseMouse
Razer Lycosa Corsair HX650 Thermaltake V3 Black Edition Razer Deathadder 
Mouse PadAudio
Razer Goliathus Asus Xonar DG + Sennheiser HD 515 
  hide details  
Reply
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