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2600k Decaying after 1 month?

post #1 of 27
Thread Starter 
So I've been running my 2600k at 5ghz@1.470 prime95 blend 12 hour stable for 1½ month, but in the last months time it sometimes didn't go through windows boot (freezes at windows logo).
I could usually fix it with a restart or going into BIOS and load defaults, then load up my OC profile and then it would start up without freezing.
But today that was simply not possible, I can't log into windows if I OC over 4.7ghz no matter the voltage, and I had to increase the voltage to 1.485 to be stable at 4.7ghz.
Anything lower I get BSOD 0x101 (add more vcore).
Even the Asus easy OC setting 4.6ghz@1.35 is not stable anymore, though it was prime/IBT proof when I got the CPU

I guess my CPU is just degrading incredibly fast?
FYI it never exceeded 80C
Anyone experience anything similar to this?
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post #2 of 27
Well that is quite a lot of voltage for 32nm I think.
    
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post #3 of 27
That could be a possibility (kinda high vCore), however I actually had a motherboard degrade the quality/reliability of the power it delivered to my chip in the past that caused previously stable overclocks to no longer be stable. RMAed the motherboard (it also had a dead NIC) and the replacement board they sent me ran my previously stable OC setting that my old mobo wouldnt run flawlessly.

If you have a spare board, or know anyone perhaps trying the cpu with those clock settings in it to rule out the cpu or mobo being the culprit.
Edited by Arinoth - 8/16/11 at 7:02am
post #4 of 27
Yup. It is degradation. I would not recommend using anything over 1.4-1.45 for a 24/7 overclock.

edit: i would recommend bringing that voltage down. It will continue to degrade if you keep it that high.

Also, you forgot to mention your temperatures. What temps you seeing across the cores?
Edited by AliceInChains - 8/16/11 at 7:10am
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post #5 of 27
I'm not real familiar with the Sandy Bridge architecture but that's still an incredibly short time for the processor to degrade. Sorry...... Can you still run it at a lower clock speed?
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post #6 of 27
Had a friend run one at roughly same voltage and it took 3 months before his chip wouldnt hold a stable O.C. I guess some just degrade faster than others.
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post #7 of 27
Thread Starter 
Quote:
Originally Posted by hollywood406 View Post
I'm not real familiar with the Sandy Bridge architecture but that's still an incredibly short time for the processor to degrade. Sorry...... Can you still run it at a lower clock speed?
yea anything at or less than 4.7@1.485
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post #8 of 27
The real question is, why not just downclock a few mhz and use a lower vcore? You'd probably want to go custom watercooling if you want to use high voltage.

It also might be your board degrading. I used to have a 955 and it would do 4ghz fine on high voltage, but it slowly started needing more voltage to reach 4ghz and after 2-3 months, I couldn't reach 4ghz anymore. I ended up frying my VRMs at one point, though when I get a replacement board, I was able to do 4ghz again easily.
Edited by Kokin - 8/16/11 at 7:16am
    
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post #9 of 27
S**t happens...

You may want to lower your OC and stay there.
It'll end up dead if you continue to put too much volts in that poor thing.

For the record temps were OK @5.0 Ghz and 1.47V ?
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post #10 of 27
Thread Starter 
Quote:
Originally Posted by Kokin View Post
The real question is, why not just downclock a few mhz and use a lower vcore? You'd probably want to go custom watercooling if you want to use high voltage.
To get rid of the CPU bottleneck for my cards I guess I could live with 4.8, but that aint happening with this chip anymore



"For the record temps were OK @5.0 Ghz and 1.47V ?"

Yes i think so it never exceeded 80c after 12 hours of prime blend,
Edited by blixt - 8/16/11 at 7:19am
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