Without any desire to use a bit more creative title, I've landed on the fail safe solution founded by Hawk. Last Thursday I had my machine running happily, and came out the next morning to find a lifeless desk ornament. It's a bit of an aging beast, Q6600 stock clocking, 3GB DDR2-800, 9600GT, however it's served me well. I assumed that the PSU had failed given the lifeless nature of the machine, not even a power light to be seen from outside the case. Borrowed a brand new PSU, it didn't fix it; upon running the existing PSU past a multimeter everything checked out there, no foul. I'm currently pointing fingers at the motherboard or memory? Thinking of purchasing a ASUS P5G41C-M LX, and 8GB of DDR3-1066 as a fix to the problem; thoughts on this solution, or alternative fixes/issues I'm missing? I'm doubting the CPU is the issue, but haven't made the effort to tear apart the other LGA775 rig I could get at. Insight?