Whats wrong with my memory?

everytime i turn my PC on i get a BSOD "memory management or IRQ less then or equal thing.



ive tryed everything... almost, i did the memtest86 n passed, swaping out the ram from 1 stick in each slot through all 6



all 12GB read fine on my pc



after my pc Blue screens i turn it off and move the ram in different slots, turn on my pc and BAM!!! im gaming all night with no problems



its a new pc i got from NEWEGG.com ive added allot to it except 4 one 5870 the ram and psu.



im thinking the ram isnt getting enough power cuz of my 2 5870's im getting a 3rd one this week but i also bought 1200WATT PSU to help power my 3rd card



heres a pic of it



http://pulse.yahoo.com/_7WHOIT5R77753CVN鈥?/a>



dont care if it doent look pritty.



i would be getting the BSOD when i set everything back to normal at 3.2GHz i dont think i got it when overclocked or maybe i did



perry much been going on since i had the PC (may 2010) sometimes it wouldnt Blue screen on me for a week



any clue on what may be the problem



i7 960 (3.2) overclocked at 4.0GHz

motherboard MSI X58 PRO-E

2 ATI 5870 in crossfire all liquid cooled 3rd comming soon!!!

64 bit Quad-Core Processor

12GB DDR3 1600

1.5TB SATAII

24X DL DVD+/-RW Drive

Sound card - Integrated

Ethernet

Realtek chipset, Gigabit LAN

800Watts 1200watts coming soon!!!

Windows 7 Home Premium 64-bit

Swiftech H20-220 Apex Ultima XT Liquid Cooling Kit

Liquid CoolingWhats wrong with my memory?
I would check MSI's support forums to see if anyone else is having a similar problem, also look into a BIOS update.



Also, try asking this question on TomsHardware.com, there are lots of experts there.