Hi,
Did you check those Bug Check Codes at Faultwire? Memory is likely for all of them.
Memory tests do not catch all errors such as mismatched memory (possible even for sticks
that appear to be identical) and when faster memory is placed in system behind slower memory.
So it is best to also swap sticks in and out to check for those even if all memory tests fail to show
a problem.
To test RAM check here - let it run 4+ hours or so.
www.memtest.org
For the Windows Memory Diagnostic Tool.
Start - type in Search box -> Memory - find Memory Diagnostics tool at top of list - Right Click -
RUN AS ADMIN follow the instructions
Windows Vista: How to Scan / Test your RAM or Memory with Windows Vista Memory Diagnostic
Tool
http://www.shivaranjan.com/2007/11/01/windows-vista-how-to-scan-test-your-ram-or-memory-with-windows-vista-memory-diagnostic-tool/
How to Run the Memory Diagnostics Tool in Windows 7
http://www.sevenforums.com/tutorials/715-memory-diagnostics-tool.html
Test Your Computer’s Memory Using Windows Vista Memory Diagnostic Tool
http://www.howtogeek.com/howto/windows-vista/test-your-computers-memory-using-windows-vista-memory-diagnostic-tool/
See the troubleshooter here for more as needed :
http://social.answers.microsoft.com/Forums/en-US/w7repair/thread/c675b7b8-795f-474d-a1c4-6b77b3fcd990
Hope this helps.
Rob Brown - MS MVP - Windows Desktop Experience : Bicycle - Mark Twain said it right.