I just picked up a G5 Apple OEM FX5200 Ultra to hack for my G4 DA. I cut off the requisite pins with my Dremel, and I masked off the A3 and A11 pins with tape. I installed it in my G4 Digital Audio (with 800MHz QS CPU), and the Mac started right up with no problems.
It showed the Apple logo and began booting.
But right as the screen turns blue and just before it displays the OS X startup screen, the Mac seems to crash. Actually, it sounds like HD activity is continuing, but there's no activity on the display. All I get is a blue screen with no pointer.
If I put the original ATI Rage Pro 128 back in, the Mac boots just fine.
Put the FX5200 back in, and blue screen.
Rage Pro back in, no prob.
Also, the video works fine in single user mode and verbose mode during boot (right up until the splash screen, anyway).
Anybody have any ideas? I'd appreciate any help!
Oh yeah: OS X 10.3.9, 1GB RAM (2x 512MB), 800MHz QS CPU, Sonnet Tempo Trio, Adaptec 2940U2W, Adaptec 2930CU, 2x Maxtor 7200RPM 200GB ATA/133 drives, 1x WD 250GB 7200RPM ATA/133 drive, 1x WD 16GB ATA/33 (built-in) drive, Apple 15" Studio Display (DVI) -or- Apple 21" ColorSync Display.