First off, does the fan, at least, start up? If not, the power supply is probably dead. Otherwise, try the following until you get something on the monitor:
1) Disconnect the SCSI chain and the floppy drive. Make sure everything else is firmly connected. If nothing else is wrong, you'll get a lit screen with a floppy disk icon and flashing question mark on startup. 2) Try switching the mouse and keyboard -- or try starting up without them! 3) Try replacing everything in the "bad" 7500 -- RAM, VRAM, processor card, cache dimm, battery, whatever -- with the corresponding components from the working 7500. Do one or a few at a time, then check to see if the thing works. Don't forget to press the CUDA button before restarting after each set of replacements. If none of this works, you've probably got a bad logic board plus a collection of useful parts for the other 7500 and the 7200. - Aaron -- PCI-PowerMacs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | -- Sonnet & PowerLogix Upgrades - start at $169 | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> PCI-PowerMacs list info: <http://lowendmac.com/lists/pci-powermacs.shtml> --> AOL users, remove "mailto:" Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive:<http://www.mail-archive.com/pci-powermacs%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
