The title says most all, the system would start to act as though it was powering up. The LED would come on for a second and the fans would start. The fans stayed on, but the LED went right back off and the system didn’t seem to POST, or show anything on the onboard video. This is a Gateway gt4022 with a 64 bit AMD processor and I think was Media Center edition of Windows XP. Anyway, I pulled the memory and CPU hoping to hear some sort of BIOS beep code, but no such luck. I pulled everything at one point with the exception of the power to the main board. It still gave the same symptoms. I tried another power supply just in case, same…. So, as I started to read online it seems that the motherboard in these Gateway gt4022’s may be a problem….