PC freeze mostly during games, audio loops.

[Horizons1]

Hello. I have been having this for 2 days now. The issue is that the computer freezes, but only after 10-20 minutes after playing a game. Even a low-end game, doesn't have to be demanding.

What happens is the PC completely freezes requiring a hard shutdown, won't react to reset button. And after it's shut down i will need to press the MemOK! Button cause it won't boot while it's on.
I already ran memtest for 8 hours, found no errors. Stressed the GPU with furmark , nothing. Stressed CPU and also nothing.
I reinstalled windows thinking it's a software issue, but it's hardware.

Here's some errors I had before reinstalling -

•A BSOD saying "Uncorrectable hardware error"

•Another BSOD saying "A clock interrupt was not received on a secondary processor" Also 0x124


•And many PC freezes when playing games with audio loops.

Also I forgot to mention that sometimes, after freezing and rebooting it will freeze either in windows or in the loading screens.

My specs :

•Windows 7 Ultimate

•GTX 670 Direct CU II 2GB - GPU

•I5 2500k Not overclocked - CPU

•BallistiX 4x2 GB kit 1600MhZ - RAM

•Asus P8Z77 V LE PLUS - Motherboard

•500GB WD Blue - HDD

It could potentionally be the motherboard since when installing a new cooler ( after I installed it , the freezes started happening ) I placed the motherboard on my METAL CASE, it moved around on it and maybe got shorted.. There are no swollen capacitors or anything like that though.

What I tried :

•Memtest86 for 4 passes and 8 hours, 0 errors.

•Prime95

•Furmark

•Reinstalling windows


Any help is appreciated, I really want to solve this since I built this PC for gaming, and everything it can do right now, is all BUT gaming. Also, it's very weird that memtest found no errors, yet for the PC to boot after a freeze I need to press a button on the motherboard which supposedly loads fail-safe default settings for the RAM, as if it caused the freeze.

PS.

I've done all the simple things. No dust anywhere, re-seated all the hardware, re-applied thermal paste, re-seated the CPU, installed drivers and so on.

Here are the 2 photos of the bluescreens of death if it helps : Imgur: The most awesome images on the Internet

 

[Mellon Head]

Please follow the instructions in this thread:

http://www.sevenforums.com/bsod-help-support/96879-blue-screen-death-bsod-posting-instructions.html

A member will be able to help you better with that information.

 

[Horizons1]

Edit : It also froze inside Bios, not the first time. But I wanted around 10 seconds after hard shutting it down, and there was no need to press MemOK! For the PC to boot.