alright... i just built my own computer and its been running excellent for about a week. the other day i brought it up to my cousins to play some WoW and it said i had a corrupted files. So i was formatting to put Windows XP on it to replace windows 2000 and it shut off. Now when i turn it one its on for about a second and shuts off. I think its the power supply (PH-500ATX), but im not sure. If you need more specs tell me.