Last year i bought a Performa 475 of of ebay that was listed as not working. As it wouldn't start at all I first recapped the power supply and after that it did turn on, but didn't do anything besides the eight tone chime of death with a black screen. My next suspect were the caps on the logic board so I replaced all of them but still nothing happens, no screen, no activity on the floppy drive, only the eight tones. I also tried it with all the RAM modules removed but that didn't help either. Any ideas what else it might be and what I could look at? As far I'm aware the eight tone chime just means general hardware failiure so at the moment I've reached a dead end.