Trying to render is crashing not only the software, but my entire computer!

Question

Hello!
I do a weekly webshow that I've been making with Premiere CS5 since November. In all that time I've never had any trouble but just this past Sunday I went to render in the H264  format I always use and the bar got to around 45% before the whole thing went tits up - the computer gave me a quick blue screen of death before restarting.
What I was able to glean from the blue screen was a suggestion that this could be due to a conflict with another piece of software. I don't install a lot of software on a regular basis, but recently I'd installed Tubeshack and - I admit - Team Fortress 2. I tried uninstalling Tubeshack and then rendering with the H264 format and the Level set to 5.0
Lucky me, I got a full render! Thinking the problem solved, I then tried to render a smaller file with the level at 4.1 (a lot of video upload sites have stingy upload limits).
The computer crashed again. Same blue screen. Same briefly displayed message about "HEY MAYBE THIS IS A SOFTWARE CONFLICT I DON'T KNOW MAN". I was, however, able to render a tiny (15 seconds) stretch of my video without complaint. I tried deleting render files, thinking that folder had gotten too fat, but this made no difference.
I know my computer is up to snuff for what I'm asking of it and that those two programs I installed recently are the only changes I've made lately. I've run my anti-viral with no results and am getting a bit concerned as I have grander editing plans in the near future.
Any help would be greatly appreciated!
Cheers,
Oliver

Answer 1

So here's where we're at - I had a far more tech savvy pal help me out, but everything he tried failed to get results. What follows is his log of the events that transpired, along with some specs:
Ran chkdsk /b
Rebooted no such luck after check disk
Adjusted Voltage in BIOS and in TURBOV Asus's mobo tools
No luck
Tried viewing crash logs in event viewer just turns up as Kernel Power Local 63 ID
Log as follows:
- System
  - Provider
   [ Name]  Microsoft-Windows-Kernel-Power
   [ Guid]  {331C3B3A-2005-44C2-AC5E-77220C37D6B4}
   EventID 41
   Version 2
   Level 1
   Task 63
   Opcode 0
   Keywords 0x8000000000000002
  - TimeCreated
   [ SystemTime]  2011-03-26T21:45:53.340400000Z
   EventRecordID 179006
   Correlation
  - Execution
   [ ProcessID]  4
   [ ThreadID]  8
   Channel System
   Computer Eric-PC
  - Security
   [ UserID]  S-1-5-18
- EventData
  BugcheckCode 292
  BugcheckParameter1 0x0
  BugcheckParameter2 0xfffffa8007b78028
  BugcheckParameter3 0xb202a000
  BugcheckParameter4 0x175
  SleepInProgress false
  PowerButtonTimestamp 0
Minidump has a log but I am unable to open it via notepad.exe
SPECS
Mobo:
Asus M4N82 Deluxe
Ram:
8 Gigs of Ram
Set at 1.80V Auto (Stock)
CPU:
AMD Phenom X4 II 965 Processor 3.6GHZ
GFX:
Nvidia 9800 GT
BACK TO OLIVER
One thing I'd like to add is that I cannot shake the feeling that some sort of resource has been slowly consumed over time. Why? Because when I first put the computer together I could preview video in Premiere in real-time. Over the year that followed the previews became slower and chunkier until finally this hoo-ha happened. I've tried hunting for a crowded temp file but no luck. I also tried "Clear Render Files" but it made no difference.
Help?