Hi Robert, Thanks for your reply. Here's how my S900 is set up:
1 GB RAM. G4 450 Mhz processor USB card in bottom PCI slot. OS 9.1 on internal SCSI OS 9.2.2 on internal IDE w/ ATA card in top PCI slot. Before the black screen problem appeared I had selected the CD-ROM as the startup drive in the control panel. I did this because I wanted to be assured of being able to boot from the Mac Install CD. I turned the computer off and relocated the ATA card from the top PCI slot to the one directly below the video card. When I powered up again I had no video. The chime did play and I heard activity from the SCSI drive and the CD-ROM light flashed but I couldn't get anything to boot, but then the screen was black so I couldn't tell what was happening (if anything). Even though your suggestion of disconnecting power to the internal SCSI and bypassing it had to do w/ OS X problems, I think I'll try that anyway, because at the time I chose the CD-ROM as the startup drive, the SCSI was the startup drive. I've only been holding down the key combination to Zap the PRAM about a minute and a half, maybe two and then given up. But I will do as you (and also Paul C.) suggested and hold the keys down for at least five minutes and see if I can get the chimes to repeat. Elliot From: Robert Kay <[EMAIL PROTECTED]> Hi, How is your computer set up and what were you doing when the black screen problem appeared? Over the years I have experienced the black screen syndrome many times and will tell you my experiences. Many people have told me the problem is the logic board, the power supply, the hard drive the video card etc. etc. However, in every case, the problem has been fixed by adjustments with the CUDA switch, the PRAM or the CPU card in combination -- SuperMacs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | Service & Replacement Parts [EMAIL PROTECTED] | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> SuperMacs list info: <http://lowendmac.com/supermacs/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/supermacs%40mail.maclaunch.com/> --------------------------------------------------------------- iPod Accessories for Less at 1-800-iPOD.COM Fast Delivery, Low Price, Good Deal www.1800ipod.com ---------------------------------------------------------------
