I think the board cost around $90 when I purchased it two years ago and it's $30 w/o shipping. Probably like $40 with it.
A bit of an update: For some weird reason when I lay the case down and open it up and boot up the PC, it seems to stay on for much longer. In fact, I have yet to shut down after around 20 minutes of the computer being on but when I lay the case up and close it, it normally can't even get past the Windows XP screen. Any ideas? Could it be overheating?
Remember that I am now using the stock fan for the CPU because my Zalman fan broke. I'm not sure if this adds fuel to the flame but for some reason the CPU stock fan that's in the computer right now is not on tight. It's tight enough where it wont fall it off but it's still very loose and I can't seem to tighten it any further because I lost the original screws and these ones are a bit short.
I'm gonna leave the computer on when I go to class and see if it is still on when I get back.