I have a B&W G3 that I've replaced the original Rev A motherboard with a Rev B. The original board had had a rather unstable history almost from the time it was new and it finally quit working altogether. That's why it was replaced. The first board (brand new) that came from the supplier didn't work. On boot it gave 5 chimes and did nothing. The supplier's tech people looked it up and said that the ROM chip was bad and to send the board back. I did and they confirmed that it didn't work and sent a replacement. It came today, I put it in and it also gives only 5 chimes and won't boot.
I've reset the CUDA switch and that didn't help. Sometimes the power switch works and sometimes it doesn't. This is true also for the power switch on the motherboard. Pressing the CUDA switch always get it to power up. The HD is the same one that was installed before and it always spins up. The fan always spins, too. I'm thinking that something else is causing the problem. Two bad motherboards isn't out of the question, but it seems odd that two in a row had bad ROM chips. Does anyone know of any other problem that would cause 5 chimes? As I'm sitting here writing this, the G3 case is open and all of a sudden the power went on by itself and I heard the usual 5 chimes. Could this computer have a bad power switch that could cause the 5 chimes because it is not getting full power to the board? Several LEDs on the motherboard light up when power is put to it. This CPU has a Sonnet G4 ziff that worked fine before, the original ATI card and a gig of ram but three of the 256MB chips are new. I tried the one original chip by itself on the last mobo and that didn't make any difference. Thanks in advance for any help. Charlie Osborn -- 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> 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 Macintosh? Get free email and more at Applelinks! <http://www.applelinks.com>
