It was time to work more on my Power Macintosh G4 (PCI) tower, and I've run into a snag.
The power supply seems to be good and I've replaced the PRAM cell. The system powers on (it has the new sound, not the old "bong"), but nothing appears on the monitor. I've tried two different VGA monitors at this point, and two different VGA cables.
I'd suspect it might be a dud video card, but (and?) the CD-ROM drive is making a repeating noise, as if it's expecting a disc.