I had a Performa 475 (Uses the same LC pizza box case,) and it had a similar problem.
What I had to do was flip it on for about 2 seconds, then flip it off and back on.
Then it should hopefully startup.
Hope this helps.
What I had to do was flip it on for about 2 seconds, then flip it off and back on.
Then it should hopefully startup.
Hope this helps.