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Prime95: Just one worker hanging

Forum Overclocking : CPUs - Prime95: Just one worker hanging

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anonymous2038   05-14-2009 at 05:00:46 PM

Hey guys, my first post in this forum.

After overclocking my cpu, I'm running prime95 over night to test for stability.

When I checked this morning (7am), I didn't find any errors on all 4 threads but for the one of the thread, last test it completed was at 3 am.. is that thread hanging per se?

It didn't show any error message for the "hanging one".

Anyone had similar problem?

Thanks,
Q9550 @3400 (need to find the optimum vcore..)
visiontek 4870 512mb
2x 2gb corsair dominator 1066 running at 1066..
antec 850 quattro psu
antec 1200 case
asus rampage formula mobo

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strangestranger   05-14-2009 at 05:50:09 PM
- 0 +

1 core failing is still a core failing. I got that till I upped the voltage enough.

Just don't go over 1.36V I think it is and you'll be o.k.

------------------------------ I'm a git, deal with it.

Antec 1200,PC Power & Cooling 750,Gigabyte DS4-x48,Intel Q9550@3.4 W/Xigmatek S1283,8GB OCZ DDR2 800,ATI 4870X2,X-FI>CA 640C amp>Tannoy R300/Senn 595's
 Reply to strangestranger
anonymous2038   05-14-2009 at 06:31:39 PM
- 0 +

I see. I was just curious because I didn't get any error message from Prime95. Thanks!

By 1.36V do you mean BIOS vcore or CPU-Z vcore?

My CPU-Z vcore is much lower than what I set on my BIOS.

Reply to anonymous2038
MaDMagik   05-14-2009 at 07:07:21 PM
- 0 +

Have you got Round Off Checking enabled in advanced options? If not than it wont report errors

Reply to MaDMagik
anonymous2038   05-14-2009 at 07:11:27 PM
- 0 +

Yes. I have "Round Off Checking" checked.

Reply to anonymous2038
MaDMagik   05-14-2009 at 09:24:05 PM
- 0 +

Well then I guess you should go with strangerstranger`s suggestion, up the vcore by a notch or two and test again to see if the problem persists. How big is the difference between bios and cpu-z? Have you got the powersaving options disabled? What about Vdroop? Im sure bios has an option to improve it too.

Reply to MaDMagik
anonymous2038   05-15-2009 at 02:40:12 AM
- 0 +

ok. I will keep on increasing the vcore until there's no problem.
As for BIOS vs CPUZ vcore, when I set my bios to 1.275 then cpuz read about 1.232 on idle. One i put stress on the cpu then it will go down 1.208.. is this normal? maybe i should start a new thread. lol. thanks though.

Reply to anonymous2038
strangestranger   05-15-2009 at 06:26:59 PM
- 0 +

Yes, cpu-z does not read the voltage you set it to, it reads the reported voltage, this is usually the one in the pc health part of a BIOS.

Use the one reported by cpu-z.

------------------------------ I'm a git, deal with it.

Antec 1200,PC Power & Cooling 750,Gigabyte DS4-x48,Intel Q9550@3.4 W/Xigmatek S1283,8GB OCZ DDR2 800,ATI 4870X2,X-FI>CA 640C amp>Tannoy R300/Senn 595's
 Reply to strangestranger
Kill@dor   05-15-2009 at 06:32:22 PM
- 0 +

Have you tired just overclocking your RAM instead oc CPU? You can get wicked fast performace with your RAM...and CPU @ 3.2GHz with stock Vcore

Message quoted 1 times
Reply to Kill@dor
cjl   05-16-2009 at 06:07:13 AM
- 0 +

Kill@dor wrote :

Have you tired just overclocking your RAM instead oc CPU? You can get wicked fast performace with your RAM...and CPU @ 3.2GHz with stock Vcore


Nope.

In almost all cases, you'll see far more gain from overclocking your CPU than overclocking your RAM, especially in the older, FSB limited architecture.

------------------------------ Asus P6T deluxe
i7 965 @ 4.2GHz (200*21), 1.384V
12GB Corsair Dominator DDR3-1600 CAS 7
 Reply to cjl
pajama   05-16-2009 at 05:07:33 PM
- 0 +

anonymous2038 wrote :

Hey guys, my first post in this forum.

After overclocking my cpu, I'm running prime95 over night to test for stability.

When I checked this morning (7am), I didn't find any errors on all 4 threads but for the one of the thread, last test it completed was at 3 am.. is that thread hanging per se?

It didn't show any error message for the "hanging one".

Anyone had similar problem?

Thanks,
Q9550 @3400 (need to find the optimum vcore..)
visiontek 4870 512mb
2x 2gb corsair dominator 1066 running at 1066..
antec 850 quattro psu
antec 1200 case
asus rampage formula mobo


Can you tell us what your temps are running at?

Reply to pajama
anonymous2038   05-20-2009 at 09:41:08 PM
- 0 +

they are running at around 60's max. low 40.

Reply to anonymous2038
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