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Prime95 passed, but my pc freeze?

Last response: in Overclocking
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January 30, 2010 4:29:40 PM

hi guyz,, i left my for prime test but when i came home and check it, i wasn.'t able to see any thing but black screen, ''freeze''
i check the prime result and it's this

[Fri Jan 29 22:45:03 2010]
Self-test 1024K passed!
Self-test 1024K passed!
Self-test 1024K passed!
Self-test 1024K passed!
[Fri Jan 29 23:00:23 2010]
Self-test 8K passed!
Self-test 8K passed!
Self-test 8K passed!
Self-test 8K passed!
[Fri Jan 29 23:15:37 2010]
Self-test 10K passed!
Self-test 10K passed!
Self-test 10K passed!
Self-test 10K passed!
[Fri Jan 29 23:31:27 2010]
Self-test 896K passed!
Self-test 896K passed!
Self-test 896K passed!
Self-test 896K passed!
[Fri Jan 29 23:46:59 2010]
Self-test 768K passed!
Self-test 768K passed!
Self-test 768K passed!
Self-test 768K passed!
[Sat Jan 30 00:03:05 2010]
Self-test 12K passed!
Self-test 12K passed!
Self-test 12K passed!
Self-test 12K passed!
[Sat Jan 30 00:18:45 2010]
Self-test 14K passed!
Self-test 14K passed!
Self-test 14K passed!
Self-test 14K passed!
[Sat Jan 30 00:34:37 2010]
Self-test 640K passed!
Self-test 640K passed!
Self-test 640K passed!
Self-test 640K passed!
[Sat Jan 30 00:50:27 2010]
Self-test 512K passed!
Self-test 512K passed!
Self-test 512K passed!
Self-test 512K passed!
[Sat Jan 30 01:05:29 2010]
Self-test 16K passed!
Self-test 16K passed!
Self-test 16K passed!
Self-test 16K passed!
[Sat Jan 30 01:21:08 2010]
Self-test 20K passed!
Self-test 20K passed!
Self-test 20K passed!
Self-test 20K passed!
[Sat Jan 30 01:36:40 2010]
Self-test 448K passed!
Self-test 448K passed!
Self-test 448K passed!
Self-test 448K passed!
[Sat Jan 30 01:52:09 2010]
Self-test 384K passed!
Self-test 384K passed!
Self-test 384K passed!
Self-test 384K passed!
[Sat Jan 30 02:07:23 2010]
Self-test 24K passed!
Self-test 24K passed!
Self-test 24K passed!
Self-test 24K passed!
[Sat Jan 30 02:22:45 2010]
Self-test 28K passed!
Self-test 28K passed!
Self-test 28K passed!
Self-test 28K passed!
[Sat Jan 30 02:37:53 2010]
Self-test 320K passed!
Self-test 320K passed!
Self-test 320K passed!
Self-test 320K passed!
[Sat Jan 30 02:53:49 2010]
Self-test 256K passed!
Self-test 256K passed!
Self-test 256K passed!
Self-test 256K passed!
[Sat Jan 30 03:09:18 2010]
Self-test 32K passed!
Self-test 32K passed!
Self-test 32K passed!
Self-test 32K passed!
[Sat Jan 30 03:25:14 2010]
Self-test 40K passed!
Self-test 40K passed!
Self-test 40K passed!
Self-test 40K passed!
[Sat Jan 30 03:40:53 2010]
Self-test 224K passed!
Self-test 224K passed!
Self-test 224K passed!
Self-test 224K passed!
[Sat Jan 30 03:56:16 2010]
Self-test 192K passed!
Self-test 192K passed!
Self-test 192K passed!
Self-test 192K passed!
[Sat Jan 30 04:11:26 2010]
Self-test 48K passed!
Self-test 48K passed!
Self-test 48K passed!
Self-test 48K passed!
[Sat Jan 30 04:26:38 2010]
Self-test 56K passed!
Self-test 56K passed!
Self-test 56K passed!
Self-test 56K passed!
[Sat Jan 30 04:41:48 2010]
Self-test 160K passed!
Self-test 160K passed!
Self-test 160K passed!
Self-test 160K passed!
[Sat Jan 30 04:57:17 2010]
Self-test 128K passed!
Self-test 128K passed!
Self-test 128K passed!
Self-test 128K passed!
[Sat Jan 30 05:13:07 2010]
Self-test 64K passed!
Self-test 64K passed!
Self-test 64K passed!
Self-test 64K passed!
[Sat Jan 30 05:28:36 2010]
Self-test 80K passed!
Self-test 80K passed!
Self-test 80K passed!
Self-test 80K passed!
[Sat Jan 30 05:44:38 2010]
Self-test 112K passed!
Self-test 112K passed!
Self-test 112K passed!
Self-test 112K passed!
[Sat Jan 30 06:00:28 2010]
Self-test 96K passed!
Self-test 96K passed!
Self-test 96K passed!
Self-test 96K passed!
[Sat Jan 30 06:15:49 2010]
Self-test 1280K passed!
Self-test 1280K passed!
Self-test 1280K passed!
Self-test 1280K passed!
[Sat Jan 30 06:31:47 2010]
Self-test 1536K passed!
Self-test 1536K passed!
Self-test 1536K passed!
Self-test 1536K passed!
[Sat Jan 30 06:47:23 2010]
Self-test 1792K passed!
Self-test 1792K passed!
Self-test 1792K passed!
Self-test 1792K passed!
[Sat Jan 30 07:02:41 2010]
Self-test 2048K passed!
Self-test 2048K passed!
Self-test 2048K passed!
Self-test 2048K passed!
[Sat Jan 30 07:17:41 2010]
Self-test 2560K passed!
Self-test 2560K passed!
Self-test 2560K passed!
Self-test 2560K passed!
[Sat Jan 30 07:33:33 2010]
Self-test 3072K passed!
Self-test 3072K passed!
Self-test 3072K passed!
Self-test 3072K passed!
[Sat Jan 30 07:49:33 2010]
Self-test 3584K passed!
Self-test 3584K passed!
Self-test 3584K passed!
Self-test 3584K passed!
[Sat Jan 30 08:04:47 2010]
Self-test 4096K passed!
Self-test 4096K passed!
Self-test 4096K passed!
Self-test 4096K passed!
[Sat Jan 30 08:21:15 2010]
Self-test 1024K passed!
Self-test 1024K passed!
Self-test 1024K passed!
Self-test 1024K passed!
[Sat Jan 30 08:36:41 2010]
Self-test 8K passed!
Self-test 8K passed!
Self-test 8K passed!
Self-test 8K passed!
[Sat Jan 30 08:51:46 2010]
Self-test 10K passed!
Self-test 10K passed!
Self-test 10K passed!
Self-test 10K passed!
[Sat Jan 30 09:07:11 2010]
Self-test 896K passed!
Self-test 896K passed!
Self-test 896K passed!
Self-test 896K passed!
[Sat Jan 30 09:23:02 2010]
Self-test 768K passed!
Self-test 768K passed!
Self-test 768K passed!
Self-test 768K passed!
[Sat Jan 30 09:39:10 2010]
Self-test 12K passed!
Self-test 12K passed!
Self-test 12K passed!
Self-test 12K passed!
[Sat Jan 30 09:54:55 2010]
Self-test 14K passed!
Self-test 14K passed!
Self-test 14K passed!
Self-test 14K passed!
[Sat Jan 30 10:10:00 2010]
Self-test 640K passed!
Self-test 640K passed!
Self-test 640K passed!
Self-test 640K passed!
[Sat Jan 30 10:25:37 2010]
Self-test 512K passed!
Self-test 512K passed!
Self-test 512K passed!
[Sat Jan 30 10:30:48 2010]
Self-test 512K passed!
[Sat Jan 30 10:41:35 2010]
Self-test 16K passed!
Self-test 16K passed!
Self-test 16K passed!
[Sat Jan 30 10:46:54 2010]
Self-test 16K passed!
[Sat Jan 30 10:57:23 2010]
Self-test 20K passed!
Self-test 20K passed!
Self-test 20K passed!
[Sat Jan 30 11:02:56 2010]
Self-test 20K passed!
[Sat Jan 30 11:13:33 2010]
Self-test 448K passed!
Self-test 448K passed!
Self-test 448K passed!
Self-test 448K passed!
[Sat Jan 30 11:29:12 2010]
Self-test 384K passed!
Self-test 384K passed!
Self-test 384K passed!
Self-test 384K passed!
[Sat Jan 30 11:45:36 2010]
Self-test 24K passed!
Self-test 24K passed!
Self-test 24K passed!
Self-test 24K passed!
[Sat Jan 30 12:01:23 2010]
Self-test 28K passed!
Self-test 28K passed!
Self-test 28K passed!
Self-test 28K passed!
[Sat Jan 30 12:16:24 2010]
Self-test 320K passed!
Self-test 320K passed!
Self-test 320K passed!
Self-test 320K passed!
[Sat Jan 30 12:32:42 2010]
Self-test 256K passed!
Self-test 256K passed!
Self-test 256K passed!
Self-test 256K passed!
[Sat Jan 30 12:48:08 2010]
Self-test 32K passed!
Self-test 32K passed!
Self-test 32K passed!
Self-test 32K passed!
[Sat Jan 30 13:03:33 2010]
Self-test 40K passed!
Self-test 40K passed!
Self-test 40K passed!
Self-test 40K passed!
[Sat Jan 30 13:19:22 2010]
Self-test 224K passed!
Self-test 224K passed!
Self-test 224K passed!
Self-test 224K passed!
[Sat Jan 30 13:34:22 2010]
Self-test 192K passed!
Self-test 192K passed!
Self-test 192K passed!
[Sat Jan 30 13:39:33 2010]
Self-test 192K passed!
[Sat Jan 30 13:49:27 2010]
Self-test 48K passed!
Self-test 48K passed!
Self-test 48K passed!
[Sat Jan 30 13:54:33 2010]
Self-test 48K passed!
[Sat Jan 30 14:04:54 2010]
Self-test 56K passed!
Self-test 56K passed!
Self-test 56K passed!
[Sat Jan 30 14:09:56 2010]
Self-test 56K passed!
[Sat Jan 30 14:20:27 2010]
Self-test 160K passed!
Self-test 160K passed!
Self-test 160K passed!
Self-test 160K passed!
[Sat Jan 30 14:36:12 2010]
Self-test 128K passed!
Self-test 128K passed!
Self-test 128K passed!
Self-test 128K passed!
[Sat Jan 30 14:51:57 2010]
Self-test 64K passed!
Self-test 64K passed!
Self-test 64K passed!
Self-test 64K passed!
[Sat Jan 30 15:08:08 2010]
Self-test 80K passed!
Self-test 80K passed!
Self-test 80K passed!
Self-test 80K passed!
[Sat Jan 30 15:23:23 2010]
Self-test 112K passed!
Self-test 112K passed!
Self-test 112K passed!
Self-test 112K passed!
[Sat Jan 30 15:38:23 2010]
Self-test 96K passed!
Self-test 96K passed!
Self-test 96K passed!
[Sat Jan 30 15:44:32 2010]
Self-test 96K passed!
[Sat Jan 30 15:54:25 2010]
Self-test 1280K passed!
Self-test 1280K passed!
Self-test 1280K passed!
[Sat Jan 30 16:00:36 2010]
Self-test 1280K passed!
[Sat Jan 30 16:10:57 2010]
Self-test 1536K passed!
Self-test 1536K passed!
Self-test 1536K passed!
[Sat Jan 30 16:17:07 2010]
Self-test 1536K passed!
[Sat Jan 30 16:26:28 2010]
Self-test 1792K passed!
Self-test 1792K passed!
Self-test 1792K passed!
[Sat Jan 30 16:32:35 2010]
Self-test 1792K passed!
[Sat Jan 30 16:42:01 2010]
Self-test 2048K passed!
Self-test 2048K passed!
Self-test 2048K passed!
[Sat Jan 30 16:48:14 2010]
Self-test 2048K passed!


i don't understand y it freeze!

some explanations?

my proc is intel core i7 920 oc to 4.0ghz with 1.29 vcore
sb and nb auto
qpi/dram 1.3



hope u guyz can help me

More about : prime95 passed freeze

a c 126 K Overclocking
January 30, 2010 4:43:20 PM

It failed i think, but obviously if it failed, Prime95 wouldnt be able to tell you (because it has froozen)

I get the same thing when overclocking my ci7 920, It doesnt blue screen, the screen just goes black and nothing else happens, I have to hit the restart button.

So your OC isnt stable, although it must be close looking at how many passes it has on prime95.

Did you run it for 17 hours? (sorry im crap at maths.)
a b K Overclocking
January 30, 2010 4:46:16 PM

^Yep, you need to raise the vcore a little bit.
Related resources
January 30, 2010 4:48:33 PM

yeah i think,, i started last night at 10:30
as u can see it stop recording at 4:48pm
so 18 hours stable!
sufficient for me,, thou!

so i'll increase the vcore?
getting it to 1.3?


btw, my temps are 67-66-66-59
that fourth core is cooler than the other!

heatsink needs to be lapped or just leave it?
or change thermal pste?
a b K Overclocking
January 30, 2010 4:51:52 PM

Well i mean, its pretty damn stable as is . It already passed 18 hours so, unless you want it 100 percent stable i would leave it as is.

But yes, if you wanted it more stable then increase it to 1.3 or so.

It is normal to see differences in your core temps. ive seen as high as a 12c difference in core temps ;) .
January 30, 2010 4:55:38 PM

ok so no need to touch my heatsink!

naa if its stable for 18 hours i am more than satisfied!


never use my pc longer than 10 hours!
a b K Overclocking
January 30, 2010 4:59:45 PM

Yeah, not to mention prime 95 stresses the CPU more than any game or program you will be running. Na, no need to touch the HSF. Your temps look good and that's what id be concerned with more than difference between cores.

Remember if you re-seat the heat sink you could also raise the temperatures of all the cores which would be worse.
January 30, 2010 5:13:39 PM

thanks man!

my next goal is to reach 29k 3dmark06 with my 5870!

well thanks again!


January 30, 2010 7:18:55 PM

well 4.0ghz with air is my goal!

i'll try to join
post my specs
a b K Overclocking
January 30, 2010 7:21:54 PM

What speed is your CPU at now? I think you can go a lot higher especially since its only at 1.29v.

BTW thanks for joining, trying to get as many people as possible.

For help on overclocking i posted alot of useful information over here:
http://www.tomshardware.com/forum/256021-29-core-overcl...
January 30, 2010 7:31:41 PM

200 bclck x20= 4ghz

i cant even boot at 4.6ghz with 1.400 vcore
a b K Overclocking
January 30, 2010 7:44:34 PM

You need to tweak other things. Just raise it little by little. I usually start raising my bclock by 5 mhz each time then when i cant boot i raise the voltage a little.

Srsly dude, the thread i posted earlier helps alot.
January 30, 2010 8:17:36 PM

i read it man, but i just cant boot, windows boot passed but then, black screen freeze, lcd poster working though, so i guess it's os problem
a b K Overclocking
January 30, 2010 8:25:32 PM

na, its not the OS. You just need to change some of your voltages.
January 30, 2010 8:31:05 PM

i need red bull here,, my eyes keeps clocing!
hahaha

well try and try
!