it could easily be the power supply, or the power supply connector, try unplugging and replugging it, and if available check the voltages with a meter. you also might try pulling the hard drive as that puts a lot of load on the power supply, if it's only marginal you should get the startup sounds, though if it's very dead that won't help. note that some things can sort of work with too little power while other things are more sensitive, and it's possible that some of the output voltages have failed but not others. in my experience, power supplies are far more likely to fail than logic boards. of course, reseating everything including the processor if socketed is also a good idea. i'd be very surprised if it was actually the power supply, if you can borrow one from another machine to check it with that's your' best bet, assuming you can't borrow a volt meter to check all the outputs (+5, +12 for sure, probably -5 and/or -12, and possibly +3.3v for the processor, i'm not familiar with that particular machine). if you can borrow a meter, email me off list and i may be able to help with determining what the outputs should be and what the pinout on the power connector is, though xlr8yourmac.com may also have it somewhere in connection with using a pc power supply.
Aaron Willems wrote: > > Here's the deal. > > I was going through storage closet at work, and took out an old B&W G3. The > problem is it won't boot up. The computer powers on, but that's it. No start > up chime, no video signal, nothing. I have tried swapping out ram, a new > processor, video card, resetting the CUDA switch, new PRAM battery, zapping > the pram, resetting the mother board, and I also verified the Power Supply > is working. (Nothing) I think you know where I'm headed. The motherboard > looks hosed. This computer worked fine when it was in use, so I'm not > totally convinced. But stranger things have happened. > > Is there anything I'm missing, before I declare this baby dead. > > -- > Aaron Willems > > -- > G-List is sponsored by <http://lowendmac.com/> and... > > Small Dog Electronics http://www.smalldog.com | Refurbished Drives | > -- We have Apple Refurbished Monitors in stock! | & CDRWs on Sale! | > > Support Low End Mac <http://lowendmac.com/lists/support.html> > > G-List list info: <http://lowendmac.com/lists/g-list.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/g-list%40mail.maclaunch.com/> > > Using a Mac? Free email & more at Applelinks! http://www.applelinks.com -- --Funny thing, the "MSN Butterfly" looks awfully fat, too fat for a butterfly, more like a bee. I guess there is truth in advertising after all... -- G-List is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | -- We have Apple Refurbished Monitors in stock! | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> G-List list info: <http://lowendmac.com/lists/g-list.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/g-list%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
