Found a 500MHz Pismo for $5 today. Got it home, removed the PRAM battery and it booted up. I was going through what was on the hard drive when the computer froze.

Since then, it will no longer boot up fully. I get the chime, followed by nothing else. As far as I can tell nothing on the display is happening. It also won't seem to output to an external over VGA. I've reset the power manager, the PRAM, and I've removed and reseated the processor, display cables on the logic board side, replaced the hard drive, etc.

Thoughts?