Posted 09 January 2008 - 03:46 PM
Taking it back to minimum seems like the way to go. Take the motherboard out of the case and put it on a non-conductive surface. Make sure you have only the CPU (with HSF), RAM and graphics card installed; and that the needed power cables are connected. Then try starting it and see if it works (you can do it by touching a flat headed screwdriver to the power pins on the motherboard). If it doesn't then one of the essential pieces of hardware isn't working, likely the power supply.
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