was the 300 watt working ok? or did it die?
had you added anything that was an extra load like a better video card?
are you sure you connected all the plugs to the motherboard?
if something killed the 300 watt PS then test
the new power supply may be defective but something might be shorting out, it's best to not repeat what you have been doing
unplug every extra fan except the cpu, disconnect any extra hard drives, all optical drives(cd-rom's etc), floppy drive?
visually inspect everything on the motherboard with a small flashlight
Edited by DaChew, 14 February 2008 - 02:47 AM.