Since the new system board and processor were put in, I've had a problem with random reboots. I'd be going along and 'click' - the system would reboot. Occasionally there'd be a fast sequence of clicks, or a very rapid 'clickclickclick' for five to ten seconds. I thought there might be a problem with the power supply, or memory, or even the (gads) system board.
Then I thought... that clicking sounds a lot like switch bounce. This case is kind of old... I wonder if the reset switch has gone intermittent on me? I disconnected it from the system board... and I haven't had a reboot in hours.
Okay, Put new case on the list of things to get... sigh.
You can't change just one thing...
J.