Tons of BSODs -- 5-6 a week

[JohnB_81]

Help me please, I'm losing half of my work week!! I'm getting all sorts of BSOD's with different error messages PFN_list corrupt Memory_dump and a couple of others. It happens the most when I'm running AutoCad MEP.
SPECS
Windows 7 pro Service Pack 1
intel(R) Core(TM)2 Quad CPU Q8300 @ 2.5GHz
installed memory RAM 8.00GB
64 bit OS

in my task manager I have 4 processes using over 50mb
iexplore.exe*32 160-170mb
svchost.exe 140-142mb
iexplore.exe*32 73-75mb
explorer.exe 57-59mb


I've located my mini dump files and attached them, any help is apperciated.

 

[Tmagic650]

MEMORY MANAGEMENT is the most prevalent noted thing in the many minidumps. You can guess what that means. Is Windows 7 fully updated using Windows Update, including all optional updates? Download Memtest86:
http://www.memtest.org/
Download version 4.20 .iso file and burn it to a DC or DVD. Boot the computer with this disk and run Memtest86 for at least 7 passes. No errors are allowed