I originally built my rig to use it as a Hackintosh but after a little while I was experiencing some issues (graphic glitches and artifacts, random Kernel Panics, sometimes causing the file system to get corrupted). I know these come part of the Hackintosh experience but I know people had successful builds with the same hardware.
My original hardware was GA-Z68-UD3H-B3 rev 1.0, 2600K CPU (stock cooler), Radeon HD 6870 GPU and various HDD's. After experiences these issues with the Hackintosh, I decided to install the OS on different hdd's. Western Digital, Toshiba and Seagate, but it wasn't a hard drive issue. I also tried an intel 520 120Gb SSD but no good.
I then decided to upgrade the GPU to the EVGA GeForce GTX 660 Ti 2GB. Still no fix.
Next, I tried the motherboard. Upgraded to the GA-Z77-UD5H rev 1.0. Nope, still doing the exact same problems.
I know my PSU is good and my RAM is good.
I do remember one time the CPU temp reached 99 degrees celcius (YES, I know that is ridiculous and is probably the cause of my problem).
So now my hardware is Z77-UD5H, GTX 660 Ti, 2600K.
Here's my question:
Can a CPU get damaged by reaching extreme heat and continue to 'work' but occasionally fail, or do they either work or not work?
I know this isn't Mac OS X related as I have installed Windows 7 & 8 as well as Linux and they all have the same issue.
Unfortunately I cannot test another CPU to compare mine to a known working one.
ANY help is so greatly appreciated. I have a black box sitting next to me which I've poured over $2K into and right now is about as useful and rock.
One or more of your cores may be damaged from the high temp. Download hardware monitor and check the core temps as well as the package temp.
How long was the cpu running at the high temp?
Have you done any stress testing on the cpu?
What power supply are you using?
-Computer was running at that temp for maybe an hour. It was whilst doing HD video encoding.
-I have done some street testing on the CPU.
-Yep, I had the cpu overclocked to 4.6Ghz at the time that it hit those high temps. I was a rookie at the time and overclocked with a stock cooler and I fear I am now seeing the consequences.
I will download hardware monitor and have a look - thanks for your help, any other advice would be greatly appreciated.
On both mb have you updated the bios to make sure it had the newest CPU and ram code. Have you made sure the mb set the ram speed up right in the bios. Have you tried running with one dimm or run memtest to see if you had a bad dimm. Last but it not strange your power supply may be working but the 12v leg may be dipping below the atx spec or there to much ac ripple and the mb it crashing from unclean power.