Not a philosophical question, distinctly component related. I've started getting some odd errors with my PC over the past few months: * Cold boot with USB joystick plugged in causes POST loop * Putting system to sleep results in POST loop on waking, requires a hard restart to get working again * Leaving the system on for a long period of time (>24 hours ish) results in a POST loop on the _next_ restart which can only be resolved by unplugging the PC from the mains. * Leaving the system on for a longish period of times (> 12 hours) results in my boot SSD drive not being picked up on the _next_ restart, requiring more mains unplugging. I'm guessing it's either the motherboard or the PSU which is on it's way to being toast as it looks to be power related. But which one? I'm using the whole thing as an excuse to upgrade to Sandy Bridge anyway, but I would like to reuse as many parts as possible for the new build and the CPU & RAM to update my antiquated Athlon 3500+ based server so I need to know what's broken. Off the top of my head the current setup is GA-EP35-UD3R mobo 500W PSU (brand/model escape me) E8400 @ stock speeds 4Gb PC6400 RAM HD4890 GPU 120Gb Corsair SSD boot drive 640 Gb data drive, some flavour of WD. Any advice/insight would be greatly appreciated.