I moved an old computer into a smaller case, switching out the motherboard, memory, power supply and cooling system. Now the computer tries to startup and restarts after 7 or 8 seconds. I tried running one stick of ram at a time, I tried hooking up the old power supply, and I moved the fan/water cooler to different fan controllers. I then started unplugging everything I didn't need to get to the bios ( harddrive, front panel usb, power and LEDs ). It doesn't matter whether the computer has been sitting all night or if I've been trying to get it running for 15 minutes; I'm therefore inclined to believe that it's not the CPU overheating, and I no longer think that it's a bad power supply. How can I determine if it's something wrong with the memory, motherboard or a damaged CPU?
Update: I purchased new memory and a new cpu but still no luck.
Update: I purchased a replacement motherboard, and that did the trick. I guess it was a faulty board.
- Motherboard: Intel DQ45EK Executive Series Q45 Mini-ITX DDR2 800 1333MHz FSB LGA775
- cpu: Intel BX805573070 Xeon/3070/2.66GHz/4MB Cache/1066MHz
- Memory: PNY Optima 2GB 240-Pin SDRAM DDR2 800 (PC2 6400)
- Graphics: Intel Graphics