Windows Vista Crash, Blue Screen

[Spiiriitus]

Hello, im having a problem with my vista OS. Im currently running vista professional 64-bit with sp1. these are my computer hardware specs

-Motherboard - MSI K9N2 SLI Platinum nForce 750a Socket AM2+ MB
-BIOS - Unsure
-CPU - AMD Phenom X4 9500 4M 95W Socket AM2 CPU
-RAM Memory - OCZ Blade 2048MB PC6400 DDR2 800MHz (Have 3 = 6GB)
-Video Card - EVGA GeForce 9400 GT 1GB PCIe w/Dual Link DVI
-Power Supply - Ultra LSP550 550w Power Supply
-Hard Drive - HITACHI 1TB SERIAL ATA HD 7200/16MB/SATA-3G (In SATA 1)
-Operating System - Vista Professional SP1 64-Bit.

Every once in a while ( usually when i open more programs at once) the OS crashes and goes to the blue screen where it conducts a physical memory dump, then i have to restart the computer. I was wondering if there are any problems with my hardware specs or if its just an OS problem, and how can i fix it? and just throwing this in there, i should be receiveing another 2g RAM stick soon, idk if this would help prevent the problem or not. any feedback would be greatly appreciated.

 

[Route44]

It could be anything at this point. We need more information such as have you added any hardware and espeically software before these BSODs occured? Have you updated any drivers?

 

[Spiiriitus]

Well, this is a brand new computer. I have windows xp installed on another partition. I have my drivers updated since its a custom made rig. I'll write down the error code and post it up if it does happen again, i havent had any problems with it but i probably will soon.