John Carmonnes approach is exactly what I do to troubleshoot any Mac. Remove all variables down to a bare bones system. Disconnect any PCI cards , hard drives except one for the boot drive, all ram sticks except for one and any other USB hub etc. Use an Apple keyboard and boot from the hard drive then see is you have any problems. I'd wipe the hard drive and then see about installing Tiger straight onto it. Then slowly bring back all the things you disconnected to start with and test your system at each point.
Stewie From: [email protected] Date: Tue, 15 Dec 2009 11:48:54 -0500 Subject: Power MacG4-AGP, Radeon 9000 video card can't upgrade to Tiger To: [email protected] I have the above Mac (Power MacG4-AGP) and I have been able to reach 10.3.9 upgrade with only occasional prohibitory signs on startup, but every installation of Tiger I have tried gives me the prohibitory on each boot. One post here led me to think it might be a problem with the Radeon card, I upgraded the firmware and tried again with no luck. I have followed every tip or hint from Apple's support forums, clearing NRAM etc. Has anyone here had a similar issue? I can give more specs if needed, but I wanted to get a sense of whether anyone had this problem first. Thanks for any help. -- You received this message because you are a member of G-Group, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/g3-5-list _________________________________________________________________ Use Messenger in your Hotmail inbox Find out how http://windowslive.ninemsn.com.au/hotmail/article/823454/web-im-for-hotmail-is-here -- You received this message because you are a member of G-Group, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/g3-5-list
