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Think this CPU may be dying ?

post #1 of 5
Thread Starter 
Assembled this system (specs in sig) about a year and half ago. Overclocked the CPU to 3.8ghz with little or no effort. System has been running fine since.

About 2 months ago I was converting some videos and I got a BSOD. I ran a stress test with linx and sure enough after all that time with a stable overclock, somehow it had become unstable and apparently it required a little more voltage to keep it stable. I went in the BIOS and bumped my VTT voltage up a notch and it was smooth sailing for another couple of months.

Now this morning, my system just hardlocks on me. I rebooted and ran memtest 86 for a few hours thinking it was a problem with my RAM. No errors were detected. So I booted back into windows and ran linx to stress test it and it BSOD again within just a couple of minutes.

I went back in the BIOS and this time I bumped up my vcore a notch and when I ran linx again, it ran longer, like half way through 20 tests, but again BSOD. So I went back in BIOS and bumped my VTT yet another notch and it will now pass all 20 tests in linx with no errors. Not entirely sure it is stable though.

Is it normal for a CPU to begin to require additional voltage as it ages? I fear that this chip may be dying a slow death.

BTW: my max temps when stress testing with linx was 82c on 2 of the 4 cores. Is that acceptable temps for when it's under 100% load?

Thanks for advice/opinions on this!
The Blue Beast
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OCZ Vertex (F/W 1.5) 30GB x2 (Raid 0) LG DVD Burner Windows 7 Ultimate 64-Bit Acer 24" Widescreen 1920x1080 
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The Blue Beast
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CPUMotherboardGraphicsRAM
Core i7 920 (D0) EVGA X58 Classified (141-BL-E760-A1) XFX HD-587X-ZNFC Radeon HD 5870 x2 G.SKILL Ripjaws (3 x 2GB) DDR3 2000 Triple Channel 
Hard DriveOptical DriveOSMonitor
OCZ Vertex (F/W 1.5) 30GB x2 (Raid 0) LG DVD Burner Windows 7 Ultimate 64-Bit Acer 24" Widescreen 1920x1080 
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post #2 of 5
From the stories I've heard, a small amount of degradation seems normal, even on relatively small overclock.

In my opinion, however, I feel this is more a feature of an unstable overclock showing itself rather than a stable overclock becoming unstable.

Lastly, this might not have anything to do with the processor. It's your motherboard that provides the power to the CPU, and if the power-regulators in either the mobo or the PSU wear (which is in fact fairly common, and much more likely than CPU degradation IMHO), then you may have to "bump up" the vcore in order to return the processor to the "same" vcore it actually got how ever many month ago.

EDIT: One more thing. Don't think of LinX as 100% load. Think of it as 150% load. There is no daily-use application, even high-end games, that will load a CPU to the same level as LinX. In my experience, LinX will usually run 15-20*C higher than the hottest I can get it while running anything else.
post #3 of 5
Like Nick said, it is probably an unstable overclock showing itself. Usually, a borderline OC will pass the tests, but after reaching a point like 1 month, it starts acting weird and BSODs, had this problem with my first OCs with my 930.

Remember, stability testing is necessarily stable. The only way you can tell its completely stable is to use it and run the tests forever.
Star
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Star
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2x Crucial M4 128GB Win7 Dell LED 24in Logitech G15 
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post #4 of 5
Quote:
Originally Posted by Shooting Star View Post
Remember, stability testing is necessarily stable. The only way you can tell its completely stable is to use it and run the tests forever.
This.
post #5 of 5
Thread Starter 
Thanks for your input guys...
The Blue Beast
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i7 920 (D0) EVGA X58 Classified (141-BL-E760-A1) XFX HD-587X-ZNFC Radeon HD 5870 x2 G.SKILL Ripjaws (3 x 2GB) DDR3 2000 Triple Channel 
Hard DriveOptical DriveOSMonitor
OCZ Vertex (F/W 1.5) 30GB x2 (Raid 0) LG DVD Burner Windows 7 Ultimate 64-Bit Acer 24" Widescreen 1920x1080 
PowerCase
Corsair TX750W Xoxide X-Clear Acrylic 
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The Blue Beast
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i7 920 (D0) EVGA X58 Classified (141-BL-E760-A1) XFX HD-587X-ZNFC Radeon HD 5870 x2 G.SKILL Ripjaws (3 x 2GB) DDR3 2000 Triple Channel 
Hard DriveOptical DriveOSMonitor
OCZ Vertex (F/W 1.5) 30GB x2 (Raid 0) LG DVD Burner Windows 7 Ultimate 64-Bit Acer 24" Widescreen 1920x1080 
PowerCase
Corsair TX750W Xoxide X-Clear Acrylic 
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