Hello Everyone. To start off my computer will not turn on. I've read some threads on your forums and mosly the problem was the PSU. I think i have the same problem, but i dont know which one to put in. Im using a stock PSU that i got about 2 years ago, but since ive upgraded my system a little by little. If you can please suggest a good quality PSU that will not blow. (i hope my comp's problem is the PSU) 2 weeks ago, ive been getting really high temps on my computer, mainly in the CPU are of about 90*. I got myself a Corsair Nautilus 500 Liquid Cooling Kit. It brought the temperature of the CPU down to 40 @ full load. But the ram is pretty hot and reads 75+ @ times 80*. But for the past month while under full load (while gaming) i think my HD stopped spinning. It would do that 3 times before shutting the system down alltogether. This time i looked into the comp to see if it were the HD acting up, i touched it to see if it were maybe over heating and the motor was dying, and my comp went POOF. It did not make a sound, not any smoke came out. I thought the HD blew, so i D/C it, but the system will not turn on still. There are lights on the Mother Board, and the CD drive lights but doesnt not open. I think it was the PSU because it was the same day i installed the new Cooling system. Also the Volt Meter (intel software) showed my Volts fluctuating down to 10.2 V from 11.4V. My specs are (from the top of my head) CPU: P4 3.2 Ghz @ 533 or 800 (can't remmember) MB: Intel D865PERL @ 800 RAM: 1Gb 2x512 Kingston @ 400 Video: ATI All-In-Wonder X800 HD1: Maxtor Rapter 15,000 RPM 40gb HD2: 160 GB @ 7200 Corsair Nautilus 500 Liquid Cooling (dont know the power consumption) Current PSU - 250 Watts ... 12v+- 13A - vorsichti (all i could make out) Thank You All in Advance, Cheers, Nick.