Computer Freezing & Sound Loop in Games / Videos

[jgriffin]

System Specs:
MSI 890FXA-GD70 Motherboard (Updated to latest BIOS)
AMD FX-8120 Processor
16GB Corsair Vengeance Ram
2x EVGA GTX560ti (sli)
Samsung SSD 128GB (windows only)
Western Digital 700GB HDD for games and music
Corsair 750w Silver+ Powersupply

Games and videos are freezing with a loud sound-loop coming from my speakers for about 5 seconds. Requires hard restart. The freeze is very random and I cannot figure out what triggers it. Sometimes it takes 5+ hours, other times it'll happen in 5 minutes.

I have Windows 7 Ultimate 64 bit.

I've tried each graphics card they both have the issue, as well as an old Radeon I used from a friend.
I've tried using different ram, g.Skill 16gb, (tried each stick individually)


Would love any suggestions! Please! I need my computer stable ASAP!

 

[jgriffin]

No suggestions?

 

[jgriffin]

Well I'd like to thank you all for NOTHING. I've figured the problem out on my own. Nobody even attempted to help. Sad.

I had to up the voltages on the PCI express slots. If anyone else has a problem similar to this try that.

 

[idroid]

You're welcome!!