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post #11 of 26
Quote:
Originally Posted by dtolios View Post

1st of all I don't believe that many mobo's can be precise to the 3rd decimal of a Volt, so...what your CPU was fed might be a bit more (or less) than the BIOS setting.

Yes CPUs do degrade, mainly with too many volts, not GHz, when overclocking.

Usually you can keep it running stable at the same speed by pumping a tad more volts (which might degrade it even further), or decrease some settings - either cut back some volts and GHz, or make your memory timings less aggressive.

Running prime @ mem or CPU heavy modes will let you get more educated guesses on which component is failing first (memory or CPU) for you to relax the appropriate settings.

I think he was going off of CPU-Z which is accurate to the 3rd decimal of a volt biggrin.gif

But yeah, the failing to boot part pretty much rules out a failing hard drive, and honestly I don't think an 8350 would have degraded at 1.493v unless your temps are above the limit. Normally with AMD systems you are safe from degrading as long as you are below 1.52v. That's what I always hear,I go by that as well and I don't have any problems with my Phenom. Also OP did you appropriately stress test you CPU before you deemed it "stable?" Because it could have not been stable from the start.
post #12 of 26
Quote:
Originally Posted by Teholdsedare View Post

Do CPUs degrade faster the higher you OC them? Or is it mainly an issue when voltage is increased?

They don't degrade from over clocking unless you like really push it, it's mostly the volts that kill processors frown.gif
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post #13 of 26
Thread Starter 
Quote:
Originally Posted by VitalShot View Post

I think he was going off of CPU-Z which is accurate to the 3rd decimal of a volt biggrin.gif

But yeah, the failing to boot part pretty much rules out a failing hard drive, and honestly I don't think an 8350 would have degraded at 1.493v unless your temps are above the limit. Normally with AMD systems you are safe from degrading as long as you are below 1.52v. That's what I always hear,I go by that as well and I don't have any problems with my Phenom. Also OP did you appropriately stress test you CPU before you deemed it "stable?" Because it could have not been stable from the start.

I ran prime for 24 hours to test stability and it was stable. This was around 6 months ago when I first OC'd the chip. Seeing as how it suddenly is completely unstable it leaves me scratching my head a bit. Some other people mentioned lowering the wattage and ghz. Well I had some OC profiles saved, and I loaded up my 4.6ghz oc which was running less volts as well, that too also fails to boot now. I will try to manual set the stock voltage and ghz and see what happens.

I really don't think it was temps that killed it. When it started to crash I monitored my temps closely while running games, which is the most intensive thing I do, and the temps were safely at 45-48 c. A week later it won't even boot with these settings.

Could a failing PSU also be the cause?
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post #14 of 26
Well it could be a no. of things, but in most cases when everything is fine, the difference in ambient temps even causes this. But I'm sure that your ambient temps must have gone higher in some point in time during these six months.

Giving higher volts really isn't a problem when temps are well below, just like you've mentioned. It even can be a windows issue, rather than a hardware issue. For checking CPU stability, prime is pretty much the worst program to be used. Personally I just play BF3 for an hr or so, or I run Arauna bench in the background of my work.
post #15 of 26
Thread Starter 
Ok interesting results.

I manual set the multiplier to 21 and disabled amd turbo boosting
also manual set my ram to 1866 and its correct timings

The system failed to boot.


Could it have something to do with me being on the original crosshair V formula and not the Z version which is made to work with windows 8? I noticed this issue begin after a windows 8 update.
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post #16 of 26
Quote:
Originally Posted by catharsis View Post

Ok interesting results.

I manual set the multiplier to 21 and disabled amd turbo boosting
also manual set my ram to 1866 and its correct timings

The system failed to boot.


Could it have something to do with me being on the original crosshair V formula and not the Z version which is made to work with windows 8? I noticed this issue begin after a windows 8 update.

It is possible, but do you mean failed to boot from the bios or windows loading?
post #17 of 26
Thread Starter 
Quote:
Originally Posted by Ali Man View Post

It is possible, but do you mean failed to boot from the bios or windows loading?
bios, that is. I can make changes in bios but after I save and exit it fails to boot before I ever see a windows loading screen. My monitor actually shuts off as if its not receiving a signal.
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post #18 of 26
Quote:
Originally Posted by catharsis View Post

bios, that is. I can make changes in bios but after I save and exit it fails to boot before I ever see a windows loading screen. My monitor actually shuts off as if its not receiving a signal.

I see, does it boot with bios presents?
post #19 of 26
Probably not a factor, but did you remove the CPU, clean it off and re-seat? What kind of cooling/TIM? Just wondering...
post #20 of 26
Thread Starter 
Quote:
Originally Posted by Ali Man View Post

I see, does it boot with bios presents?

Yes that's the only way it boots.
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