I have an LC 580 with the following upgrades:
- Replaced original motherboard with one from a Power Mac 6500
- Added a Sonnet G3 accelerator to the 6500 board
- Also added one of those nifty Orange Micro USB/Firewire combo cards

All this was done years ago and I used this computer for quite a
while, so I know there was nothing wrong with any of the way all these
were installed.  However, this olde mac has been sitting unused for
about a year, and when I fired it up a couple days ago just to see how
it was doing, it chimed and seemed to be booting up but has no video.

In the old days I would have known the sequence to troubleshoot, but
now I can't decide what to do.  I seem to recall that a dead PRAM
battery can cause the macs to lose video, but having no PRAM battery
at all does not - so I removed the PRAM battery, no luck.

What are the next few steps?  Re-seat the RAM? Remove all the fun
stuff (accelerator & combo card)?  Then what?

Thanks for any pointers,

Bruce - in Orlando

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