Hello everybody.

First off, apologies if this thread is in the wrong section of the forums. Well, as my thread title already states, the problem that I am currently having is that my computer freezes randomly. Admittedly, most of the time my computer freezes are when I’m either playing a computer game, or having several applications running at once. However, there have been a couple of occasions when I left my computer on with barely anything running (other than, let’s say, a video file that’s paused), and when I come back, my computer still freezes. Here are my current system specs:

Motherboard: Asus P4P800 SE
Power supply: 480W made by Thermaltake
Processor: Pentium 4 3.2 GHz
RAM: 2GB PC3200 DDR Dual-channeled (these are two 1GB sticks)
Video Card: 512MB ATI Radeon X1650 AGP 8x (with the latest drivers)
Sound Card: Sound Blaster Audigy SE
Hard Drive(s):
- Two internal drives: a 40GB and 250GB hard drive made by Maxtor (model unknown)
- One 500GB external hard drive made by a no-name company (and it’s usually kept off unless I need it)
OS: Windows XP with SP2

Here is what I have tried out so far:
1) I switched out my video card (the X1650) with a newer card (a 512MB ATI Radeon 2600 HD), but the problem still occurs
2) I ran a check on my RAM using a program called Memtest86+, but the test comes out with no problems
3) I thought maybe it was my cooling, however I have the side of my case open, and the temperature for the room with my computer is fairly cool
4) I ran a virus scan, and nothing comes up

I’m pretty much at a loss as to what could be going on to cause my computer to freeze. Any help and suggestions would be much appreciated. Thanks in advance.