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PC Restarting during Prime95

Last response: in Overclocking
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December 16, 2007 6:54:12 PM

My new PC is restarting itself in the middle of test 3 on Prime95. Currently, nothing is overclocked. I just finished the build late last night and am testing for stability before I start bumping up the voltages. Here are the two messages I get from the logs:

V24OptionsConverted=1
SendAllFactorData=1
StressTester=1
UsePrimenet=0
MinTortureFFT=8
MaxTortureFFT=4096
TortureMem=875
TortureTime=15

[PrimeNet]
Debug=1

OldCpuSpeed=2400
ComputerGUID=90b0354344a1d894562f7d6aabbca493
SelfTest1024Passed=1
SelfTest8Passed=1

The PC Build is below. At idle, my CPU runs at 33 degrees, during the Prime95 test, the hotest it got was 50 degrees but mostly stayed around 47 degrees. Im using a thermaltake ultra 120 extreme heatsink on the CPU.

Any thoughts? My first thought is to run Memtest, which I will probably do next.

Current Voltages:
NB Core 1.23 V
SB Core 1.52 V
DDR2 Term 0.93 V
Memory 1.86 V

I think the memory voltage is low since the website for the Patriot Extreme Performance memory states it runs at 2.2 V, but I wanted to test it before I started bumping it up.

Build:
The equipment is as follows:
PC Power & Cooling Turbo-Cool 1KW-SR EPS12V 1000W Continuous @ 50°C Power Supply http://www.newegg.com/Product/Prod [...] 6817703007

Intel Core 2 Duo E6600 Conroe 2.4GHz LGA 775 Processor Model BX80557E6600 http://www.newegg.com/Product/Prod [...] 6819115003

Patriot Extreme Performance 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory Model PDC22G6400LLK http://www.newegg.com/Product/Prod [...] 6820220144

LITE-ON 20X DVD±R DVD Burner with LightScribe Black SATA Model LH-20A1L-05 http://www.newegg.com/Product/Prod [...] 6827106073

Antec Performance One P180B http://www.newegg.com/Product/Prod [...] 6811129017

2x BFG BFG 8800 GTX OC

ASUS P5N32-E SLI Motheroboard

More about : restarting prime95

December 17, 2007 12:39:57 AM

Anyone?
December 17, 2007 12:41:22 AM

It sounds like you need more vCore.

Normally a restart during P95 = More vCore is needed.
Related resources
December 17, 2007 12:45:25 AM

According to AiBooster on my MB, the current voltage values are:

1.34 Volts
NB Core 1.22 V
+5 5 V
SB Core 1.52V
1.2 VHT 1.23 V
+3.3 3.25 V
DDR2 TERM 0.93 V
Memory 1.84 V

Any suggestion on which one to increase and by how much?
December 17, 2007 12:46:53 AM

dsmaddox said:
According to AiBooster on my MB, the current voltage values are:

1.34 Volts
NB Core 1.22 V
+5 5 V
SB Core 1.52V
1.2 VHT 1.23 V
+3.3 3.25 V
DDR2 TERM 0.93 V
Memory 1.84 V

Any suggestion on which one to increase and by how much?


Look for CPU Voltage or CPU vCore, etc...

Increase it one bump at a time and see if it helps.
December 17, 2007 7:43:28 AM

Per your RAM specifications, it should be run at 2.2 volts. You might want to increase your voltage to that and try again.
December 17, 2007 9:13:58 AM

Groveling_Wyrm said:
Per your RAM specifications, it should be run at 2.2 volts. You might want to increase your voltage to that and try again.


I think I agree with you. I ran the small FFTs last night (less memory test) and it ran for 8 hours with no problem. I will bump the voltage on the memory up to 2.2v tonight and see what happens.

Thanks.
December 17, 2007 12:01:09 PM

knocked memory voltage up to 2.2 V and it seems to be running Prime95 great. In fact, the CPU temp dropped three degrees under load.

After I let this run for awhile I will probably start bumping the CPU up a little. Any suggestions on where to start and what temp you guys think I should try to stay under for my build? The build details are above.

December 18, 2007 12:02:11 AM

Bumped my memory voltage up to 2.2 V and ran Prime95 for 14 hours before I stopped it. No errors. Heading out to my parents for Christmas so I will try and overclock the system once I get back from Christmas.
December 18, 2007 12:09:58 AM

For overclocking, its really just guess and check.

Up clock a little until it resets or you cant Post etc.
Then up vCore until stable and then up again
You can look at Comps. Temp sticky at the top,
I believe yours is good below 70 and dont go higher than 1.5vCore
December 18, 2007 12:12:50 AM

Can you just increase the voltage without affecting the video card in any way? The reason I ask is b/c I have two BFG Tech BFGR88768GTXOC2E GeForce 8800GTX 768MB 384-bit GDDR3 PCI Express x16 HDCP in my PC that are factory overclocked. These video cards are to expensive to burn up.
December 18, 2007 12:18:18 AM

in the BIOS set PCI-E frequency to 100, do not touch the Pci-e voltage

Just clock and vCore, also make sure you watch Ram frequency, lower the multiplier for it if it goes above 800 for now, also set timings manually to 5-5-5-18 (if it is 4-4-4-12)

If you go above the motherboards highest frequency, up the FSB overvoltage if you want to

Edit: Also for the time being, turn off EIST and C1E. Turn them back on if you can once you have the clock you want
November 16, 2013 12:50:15 PM

A restart without a blue sceen is not vcore it's memory voltage. As someone mentioned previously, loosen timings or increase voltage.
!