Hi, recently, i had my PSU literally blown up. i hooked it up, and it started i dunno, i guess blowing up is the best word to describe it. So, afterwards, (it was a 650 Cooler Master PSU) i got a 250W PSU and plugged it in. the light in the mobo turns on, the little green electricity indicator, but the computer won´t turn on. i press the power button a million times, but it wont turn on, no light will turn on, no fan will turn, no little electricity sounds... nothing. So, what is it? i dont think my mobo or anything else on my pc was fried, so can it be that the new 250w PSU isn´t comptaible with my pc? I have a Radeon HD4670 512 Vram, m2n4-SLI mobo, an athlon 64 x2 5200+, 2 HD´s 1 is 80 gb and one is 300 gb, and two 1gb ram sticks. Thanks guys.