Electricity quality isn't that good here so some sort of protection is almost a given requirement, these AVRs have saved my PCs quite a few times. Didn't know about the relay delay although I don't know if the CDP units use mechanical relays or not as they're silent. The only way to tell they are correcting voltage is thanks to a buzzer (emits a PC like beep sound, not clicks). I have a smaller AVR connected to my secondary rig and it emits clicking sounds so I think it uses mechanical relays. They are made in Mexico (or at least this particular unit is) but I guess internals are from China (everything is anyways). Since I won't be playing games anytime soon due to the challenge I took the GT430 from my main rig and put it in the Phenom rig to do some GPU work. EDIT: huh? GT430 isn't supported??? I just can't win, can I?