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Trying to overclock my i5 3570k

post #1 of 17
Thread Starter 
Hi, I'm in the process of overclocking my i5 3570k and its going pretty well. Everything is stable at 4.3ghz right now with a vcore of 1.2v

I haven't tried increasing the OC, or tweaking the voltages at all because I'm having a slight issue with windows 7.

When the CPU isn't overclocked everything works great and I'm happy. However, when I overclock windows gets really unstable, and I don't mean it BSOD's. A lot of my games/programs tend to crash "blah blah... is not working".

Anyone know what the cause of this is? Like I said, the computer runs fine in prime95 and is completely stable... programs just crash, A LOT! mad.gif

any help would be great smile.gif
post #2 of 17
How long did you run prime95 for? Was windows stable pre-oc?
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post #3 of 17
Thread Starter 
I did 5 hours while I was out, came back and went on BF3, almost instantly crashed.

Chrome also crashed while typing this.

EDIT: antivirus just crashed mad.gif
post #4 of 17
Quote:
Originally Posted by Bacheezi View Post

I did 5 hours while I was out, came back and went on BF3, almost instantly crashed.
Chrome also crashed while typing this.
EDIT: antivirus just crashed mad.gif

Were you stable before your overclock? Five hours is not long enough to ensure stability, some people recommend 24 hours sometimes even 48 hours from what I have seen. I personally run it overnight around 12 hours to check for stability.

Typically instability is due to low vcore, I would say that yours is slightly too low since you are not getting a complete crash. Check to see if you are stable in prime 95 longer than your 5 hours, if not try bumping up the voltage slightly by 1 notch.
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post #5 of 17
im getting mine in a few days. can't wait to overclock biggrin.gif
post #6 of 17
Thread Starter 
Quote:
Originally Posted by IBooNI View Post

Were you stable before your overclock? Five hours is not long enough to ensure stability, some people recommend 24 hours sometimes even 48 hours from what I have seen. I personally run it overnight around 12 hours to check for stability.
Typically instability is due to low vcore, I would say that yours is slightly too low since you are not getting a complete crash. Check to see if you are stable in prime 95 longer than your 5 hours, if not try bumping up the voltage slightly by 1 notch.

I never checked to see if the computer was stable on stock.

Ok, I'll try bumping the vcore to 1.21v. Also, I was just doing a quick prime95 run and one of the workers stopped, while the others kept running. Is slightly low vcore the cause of that too?
post #7 of 17
Thread Starter 
Update

I just increased the voltage to 1.22, ran prime 95 and BSOD'd after like 10 seconds.

why would an increase cause a bsod wth.gif
post #8 of 17
In my experience, a failed worker was fixed by increasing the vcore. Try putting the voltage on auto and check for stability. If it is stable, you can go down on the vcore from there. Also, if it isnt stable, I would check for stability at stock, just in case the problem is elsewhere.

Also, from looking around, it appears people are running 1.3-1.35 vcore for around 4.5 ghz.

1.22 is most likely too low for 4.3 ghz. Like I said, I would try it on auto, run prime 95 check voltage from there with cpu-z. If it is stable I would then start to decrease the vcore till I get my correct setting. I am on a 2600k, and once i started decreasing, the stable voltage was so close already to what I was getting on auto, I just left it on auto.
Edited by IBooNI - 10/24/12 at 7:34pm
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post #9 of 17
Thread Starter 
ok I'll try auto.

I've been steadily increasing the vcore from 1.22, now I'm up to 1.28 and workers are still crashing. At 1.26 I was BSODing with prime.

Man, I liked overclocking my i7 920 a lot more frown.gif
post #10 of 17
What BSOD are you getting? When overclocking my 3750k i kept getting memory related BSOD's and didnt get a cpu related BSOD until 4.7Ghz@1.370. So it may have to do with your ram.
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