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4th core failing after stability a few months ago...

post #1 of 12
Thread Starter 
Hey guys,

My 4th core failed a prime95 blend only a few minutes into it tonight. I was 30 hours stable on this 4.1GHz overclock about 3 or 4 months ago, and now it's doing this. My core voltage never goes above 1.404v, and my temps never go above 45c and are usually around 35 - 40c. Any opinions? Thanks!

Jake
post #2 of 12
you need more volts!

usally 4.0 is around 1.5vcore but no more then 1.55
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post #3 of 12
yup, all you need to do now is add more voltage =[ it sucks but lets just hope its not the processor degrading over time _
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post #4 of 12
Thread Starter 
Ya, I think it's degrading. The 4th core is not stable at 1.45v and at 4GHz after 7 hours last night. This is the first time I have pushed the voltage over 1.404. I'm a bit frustrated. I kept the voltage at 1.404v and below so that the cpu would not degrade, but it seems that this did not help. What direction would you go from here?
post #5 of 12
Quote:
Originally Posted by sbdblyss View Post
Ya, I think it's degrading. The 4th core is not stable at 1.45v and at 4GHz after 7 hours last night. This is the first time I have pushed the voltage over 1.404. I'm a bit frustrated. I kept the voltage at 1.404v and below so that the cpu would not degrade, but it seems that this did not help. What direction would you go from here?
Bummer =[

I suppose now maybe you should start lowering your overclock possibly 3.8ghz and get it stable there_ or 3.9
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post #6 of 12
Thread Starter 
Quote:
Originally Posted by httuner View Post
Bummer =[

I suppose now maybe you should start lowering your overclock possibly 3.8ghz and get it stable there_ or 3.9
How long have you had your chip? What is your voltage at and what temps do you run? My chip is about 4 months old.
post #7 of 12
Quote:
Originally Posted by sbdblyss View Post
How long have you had your chip? What is your voltage at and what temps do you run? My chip is about 4 months old.
I've had mine for a little over 4 months also_ I've been running it at 4.0ghz at 1.403volts in bios(1.428volts showing in CPU-Z under load) for the first 2 months I had it_

then just 2 months ago I decided that I want the most out of it, so I got myself a Corsair H70 and jump it up to 4.2ghz which is now my 24/7 overclock_

so 4.2ghz @ 1.456volts in bios(1.488volts shown in CPU-Z under load) temps never exceeding 50C_

Here's my current overclock:
http://valid.canardpc.com/show_oc.php?id=1812477

I can do 4.4ghz at 1.5volts in bios and 1.512volts CPU-Z, I'm 6hour stable on that overclock never exceeding 53C but after 6hours and 32mins I fail Prime95 =[ overall it was a good shot, if only I could get it stable I would so go 24/7 on 4.4ghz =]
Edited by httuner - 5/10/11 at 2:33pm
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post #8 of 12
You said the 4th core failed, would that be a "worker has failed" error in prime95? If so increase the CPU/NB voltage or Dram voltage a bit.

BSOD usually means lack of Vcore
Worker has failed usually means lack of CPU/NB voltage or Dram voltage
 
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post #9 of 12
^^ + 1

No way your chip has taken damage after 4 months of 1.4v... There are people that run their chips at 1.5 24/7 for folding (me) that don't see degradation.
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post #10 of 12
What's the point of doing 30hours+ of prime? Even folding that long wouldn't give your pc a bsod. Prime and furmark and other stressing tools are known for degrading your cpu/gpu significantly.
    
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