Ok here are my specs: Athlon XP 2200+ Gigabyte KT 400 AGPP8X/FSB333 512 DDR RAM Geforce 3 ti200(think its Ti200) with 128 RAM 40 GigHD Audigy Sound Card Runing winXP I upgraded my system from an AthlonXP 1700 with 256 MB of ram to an Athlon XP 2200 with 512 DDR. I used thermal paste on the CPU. THe computer booted up with no problem and the jumpers were set as auto, so it detected chip as a Athlon XP 2200+ It ran fine for 30 mins (i was surfing the web in windows xp), then the computer suddenly shut off. I thought maybe the CPU overheated or something, so I let it cool for a few hours and tried again. It didn't boot. There is a small light that turns on by the RAM when I hit the power, and the CPU FAN + the Motherboard fan twitches slightly(twitches only, it desn't turn on). Well I went and bought another Athlon XP 2200 thinking I burned out the chip. Put the new chip in and the same problem as above (fan only twitches) occured--it didn't boot. I took the Athlon XP 2200 chip I had thought was burned out and swapped it into my other computer. The other computer booted no problem...So I know it is not the chip at fault. I removed my MB and reinstalled it(took out and put back all the cards) and still have the same problem. Right now I only have the videdo card, Ran,and IDE cable connecting the HD in. What do I do? The Motherboard was working perfectly for several months. It is new. I don't see how I could have blown the motherboard Please Help, I am pulling out my hair!