So yesterday, about 1 hour into a nice session of BF2, my computer just dies. I noticed that I lost VGA feed a half-second or so before the computer itself actually went out, but in the end the system just stopped running. It won't start up now, and of course I've tried all of the easy solutions (circuit breaker, running on another cord/outlet, checking voltage switches, etc.). The CPU heatsink seems to be in good place, and the computer is about 6 months old, so I figure that if the CPU were going to melt, it would've already done it. The motherboard shows no signs of scorch marks either. When I say it won't start up, I mean NOTHING happens when I hit the power button. No fans, no drives (optical or hard), no light, just the empty click of the useless button. 2 things I haven't tried: Jumpering the power on/off pins on the motherboard - power buttons don't just give up the ghost, do they? And if that were the case, why would my computer have quit on me. Clearing CMOS. Heard the suggestion in a forum, but no idea why it's relevant. Seems to be a POWER problem. Replacing the battery. Through a little reading, I've come to suspect that it's the PSU, especially because I just installed (from an old computer that I disassembled) another optical drive and a sound card - and all I had was a 450W case PSU. (I have an X-Blade case). My first question: is this the correct assessment? So, in looking for a new PSU, I've found an extremely good deal on a ChiefMax brand 550W supply - 20ish dollars. Think it'll hold up for a few months?