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Possible CPU damage after Overclock?

post #1 of 13
Thread Starter 
So after building my rig almost a year ago I finally decided to try and get my 3570K as overclocked as possible. I was trying for 4.5 to 4.7 GHz and ran a lot of short Prime95 tests (nothing longer than an hour) as outlined in this thread: http://www.overclock.net/t/1291703/ivy-bridge-overclocking-guide-asus-motherboards

During one of my attempts to reach 4.7 GHz I had my CPU voltage set to 1.5 (which seemed to hold everything just fine; no errors or crashing process) but after 4-5 minutes or so the temps on a few of my cores passed into HOT territory according to RealTemp. I immediately killed the tests and started working on getting 4.5 stable since it seemed apparent my cooling set up couldn't handle the heat.

The only problem is now my proc seems to have died with regard to any sort of load bearing. I am typing this right now from my rig which seems to do fine with web browsing and watching HD videos, but games won't launch anymore and trying a quick test on Prime95 with even stock speeds immediately blue-screens.

Is it likely that the small time my proc was above safe temperatures (according to RealTemp) caused it to lose the ability to handle anything more than basic usage?

Any advice is appreciated.
post #2 of 13
Temperatures themselves will not kill a CPU... they have thermal throttling and shutdown built-in.

However, voltage is what actually hurts a CPU... (temperature just accelerates the damage). Isn't 1.5v high for that chip especially for just air cooling?
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post #3 of 13
Thread Starter 
I am a n00b overclocker and assumed since since my mobo allows up to 1.92 or so it wouldn't be too bad. I was having trouble keeping 4.5 stable at anything under 1.33 and I thought my chip needed a bit more juice than the average 3570K. Is the crash-under-load a typical symptom of damage from overvolting?
post #4 of 13
Quote:
Originally Posted by Pacal89 View Post

I am a n00b overclocker and assumed since since my mobo allows up to 1.92 or so it wouldn't be too bad. I was having trouble keeping 4.5 stable at anything under 1.33 and I thought my chip needed a bit more juice than the average 3570K. Is the crash-under-load a typical symptom of damage from overvolting?


1.92V O_O That's LN2 territory, no wait i don't think people go to that high of Vcore even at -250C LOL

1.4Vcore is the MAX Safe...if i remember correctly so yes 1.5V could of killed her, since she was on Air and HOT.
 
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post #5 of 13
Thread Starter 
Well, shoot. It looks like I should have done more research before just changing numbers. I'll have to keep that in mind after I buy a new proc; thanks for the info.
post #6 of 13
Quote:
Originally Posted by Pacal89 View Post

Well, shoot. It looks like I should have done more research before just changing numbers. I'll have to keep that in mind after I buy a new proc; thanks for the info.

I don't want to add salt to the wound, but yes, ALWAYS look things up when it comes to these things, maybe this will be a lesson learned and you can learn from it and do better next time smile.gif

If it makes you feel better, doesn't Intel offer a OC Warranty for the CPU's? You could try that and it's Free
 
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post #7 of 13
1.5 is way to hot for the 3570k. Might want to try resetting your CMOS/BIOS as last resort attempt. If you still have stability issues after clearing the CMOS...your CPU may be kaput. Restting the CMOS will rule out a bad mobo.
 
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post #8 of 13
i'm running my 3770k at 1.57V , 24/7 . and you think you destroyed yours in a few minutes? might be , but i highly doubt it.
post #9 of 13
Quote:
Originally Posted by sstephan View Post

i'm running my 3770k at 1.57V , 24/7 . and you think you destroyed yours in a few minutes? might be , but i highly doubt it.

You should back that down soon. Your max OC will heavily fall in a few months and your CPU will have a hard time running just at stock clocks.

But yes, 1.92v is 60-70% higher than the stock voltage. It's definitely not designed for that.
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post #10 of 13
I don't know about the 3770k, but there have been people who have benched for months @ 1.6-1.7 on the 2500k. People have also put insane PLLs (>2V) and temporarily primed at 1.9V before, all without permanent damage. From the XS thread about dead Sandys, it seems that all of the dead CPUs neither had high temps nor high volts (both were lower than 1.4 vcore).

Right now my 2500k won't stabilize even at 1.525V, and I'm going to push a little higher, but you got me worried alright heh.
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