Hey folks. I'm experiencing a total system shutdown whenever I stress it for a little while. I might be posting this in a wrong forum, but I'm pretty much at a loss of what is causing it. I've recently formatted the system and I think I've installed the same software and drivers I usually operate with. The only difference is that I upgraded the OS from XP Pro SP2 to XP Pro SP3 at the same time, but I doubt that it is what's causing the crashes. The nature of the crash itself (black screen, the reboot) lead me to suspect that the system overheated. I checked the fans, but they seem to be running as intended. Then I tried using PC Probe 2 to monitor the system, which came up with the +3.3v malfunction. I have no idea what this means, but it goes as low as 2.8v which is when the program notifies me that something is wrong. As I said earlier, the crashes only occur when the system is being stressed. If I shut down whatever I am doing when the notification sounds and return to the desktop, the voltage slowly returns to a stable 3.3v and thus avoid crashing. Here are some of my specs. If more are needed, let me know. I'm no expert on these things, but I'll do my very best. Motherboard: ASUSTeK Computer INC. - P5WD2 Physical memory: 2gb SDRAM Processor: Pentium 4 3GHz Hard drive: Maxtor 6L200M0 Graphics card: Radeon X1800 Series Again, I'm sorry if I'm posting in the wrong forum or anything. And I really appreciate any help or advice you have to offer. Thanks in advance.