I've been trying to install a Radeon 9800 Pro Mac Edition (AGP, 2x/4x, 256Mb) in my G4 (Digital Audio/466MHz upgraded to 1.2GHz). I've upgraded the power supply to 343W and upgraded the ATI drivers.
Problem: Approximately 10-15secs after bootup, the mouse and keyboard lockup, and I must do a hard reboot. There appears to be no power to the mouse (i.e. no light emitted). Also note, when trying to do a Safe Boot, the sysem shuts itself off before fully starting up.
I tried a PCI USB card for the mouse & keyboard but same problem.
The system works fine with a PCI Radeon 9200 128Mb card attached to the monitor, even while the 9800 is in the AGP slot. I've tried just about everything and ATI has not been a help. My last resort is to install an ATI ROM updated dated Aug 2005 but I am reluctant to try and I'm not sure I can perform it until I can do a Safe Boot.
Help!!
Problem: Approximately 10-15secs after bootup, the mouse and keyboard lockup, and I must do a hard reboot. There appears to be no power to the mouse (i.e. no light emitted). Also note, when trying to do a Safe Boot, the sysem shuts itself off before fully starting up.
I tried a PCI USB card for the mouse & keyboard but same problem.
The system works fine with a PCI Radeon 9200 128Mb card attached to the monitor, even while the 9800 is in the AGP slot. I've tried just about everything and ATI has not been a help. My last resort is to install an ATI ROM updated dated Aug 2005 but I am reluctant to try and I'm not sure I can perform it until I can do a Safe Boot.
Help!!