Originally Posted by mrestine
Guys, my system just quit overclocking on me, after 4 months of rock solid 4ghz performance. My old posts with my BIOS settings are in this same thread dated 11/18/09 for reference. One night last week, I was defragging a 1tb SATA drive located in an Argosy media box via a USB connection. It was taking a long time, so I left the system on overnight to finish. I've had the system running overnight a lot without any problems previously. Anyway, when I checked on it the next morning, it was frozen solid without any video and requiring a hard re-set. Now the system will not overclock at any of the EZ OC settings from 3.6ghz to 4.0ghz. It won't even get past post to even attempt to load Windows. I have all settings at default and the system does overclock itself depending on load by upping the mulitplier to 21x for 2.8ghz. That seems to work OK and the system overall works fine at the default settings. Anybody ever have a problem like this? Is it possible that something on the motherboard failed due to heat from the USB defrag? Thanx in advance.
Leaving settings at auto will cause the bios to set much higher voltages then normally needed for stability. It's possible that overvoltage of some component may have damaged something. Worst thing, you probably don't even know what the actual voltages were.
I'd do a proper checkup of your hardware. Maybe start with your DDR ram.
Check your mainboard for burnmarks (however small) or damaged/capacitators.
Do a thourough memtest.
It could just be your cpu throttling due to excessive heat.
To test that, use Coretemp
together with prime95
. Have them both opened and start a blend or large FFT torturetest with prime95.
Watch your temps in coretemp, and and if they get above 90C your cpu will probably start throttling. If you get a freeze or bsod, you probably have an unstable oc that needs to be corrected asap and by manually setting speeds and voltages.Edited by genuine555 - 3/7/10 at 4:44pm