Power Supply BSOD?

[KFatine]

Hi,

I've just built a new PC, 6 core Phenom II 1090T, 8GB Ram and hd 5870 graphic card. Ever since I built it (2 weeks ago) I've been having BSOD problems and random restarts.

At first I thought it was a power supply issue... but now I'm not so sure (have tried two other PSUs, though they weren't of the greatest quality)...
Im using Windows 7 Professional, Full retail version and have installed it twice since building the system a couple of weeks ago.

The minidumps are attached aswell as the PERFMON report and Windows_NT6_BSOD_jcgriff2.

Would be grateful for any help!

EDIT: 64 bit Windows!

 

[LiquidSnak]

Complete specifications are helpful. Please fill out your system specs

 

[KFatine]

MotherBoard: ASRock M3A UCC
Processor: AMD Phenom II 1090T 3.2 GHz Black Edition
RAM: 8GB Corsair Vengeance (2x 4GB)
Hard Drive: 1TB Western Digital
PSU: HiPoint 500W (later EZCool 700W Ambience)

 

[KFatine]

Anything else I need to provide? I really appreciate any help I can get!

 

[LiquidSnak]

Have you installed all the required drivers for your system and peripherals, and are there any BIOS updates for your motherboard? What antivirus are you using?

 

[KFatine]

I've checked for BIOS updates and can find none. As far as I know I have all the system drivers and peripheral drivers up to date. I'm using AVG anti-virus.. which i've been using for a while.