OK, so when I replaced the power supply and cranked the OC back up to my previously acceptable speed listed in my sig, Orthos went way over 62C and leaving video transcoding to run overnight found the computer rebooted in the morning.

So, I reinstalled the Thermaltake V1 cooler with fresh AS5 and it didn't help. Even the 30% OC profile seems to run hotter than before.

Can you break a motherboard so that the cooler doesn't clamp down tight enough to dissipate the heat? Is it obvious when you look? I'll admit I wan't careful when I moved the computer back when the Arctic 7 cooler was on, but I didn't think I had done permanent damage: I figured the cooler had stopped working. All 4 legs seem to be firmly in-place, but I'm no expert.

I'm now wondering if I should pass on buying once of those CoolIt peltier coolers and get a fresh motherboard. I'd be ticked if I spent the $500 and found that even that cooler wasn't able to do a good job...