How to get this 2004 PMG5 back up and running?
Hello all,
My girlfriend and I picked up a bunch of Power Macs the other day: 1x G5 Quad, 1x G5 2004 Dual 1.8 and a G4 MDD 2003. The G4 works great and I upgraded the graphics to a lovely Geforce 3 Ti200 card. Great OS9 machine!
The G5s though, are a different story. The Quad has the infamous Delphi LCS, which broke. The logic board is undamaged, but the previous owner was not kind to this machine. The red LED near the top RAM slot shows the ill fate of this machine.
My question is mainly about the 2004 Dual 1.8Ghz machine. It POSTs fine, but once it tries to boot from a disk or a DVD, it hangs at the Apple logo. No spinning wheel, just an immediate freeze. The fans go turbo as soon as the open firmware is loaded.
Specifications:
G5 Dual 1.8Ghz from 2004
2GB PC3200 (2x 1GB, tested as working properly in other machines)
Radeon 9600XT
Disks tested include several SATA drives as well as a Kingston HyperX SSD. DVDs include 10.4.6 Tiger and 10.5.6 Leopard, universal versions.
What have we tried so far:
- PRAM reset (machine doesn't respond to the command, just continues it's boot attempt)
- Safe mode / single user mode / verbose mode (again, machine does not respond to the commands)
- Replacing the PRAM battery
- Booting into Open Firmware (works fine, the multiboot section works fine as well, and the install DVDs are detected)
- dev /memory .properties command in Open Firmware (shows SPI data as expected, RAM appears functional)
- PCI SATA card to rule out a defective SATA controller.
What we haven't tried yet:
- Apple Hardware Test to diagnose any remaining problems.
So, dear Apple community, is there something else we're missing here? I can get a Dual 2Ghz logic board + CPUs on the cheap if need be, but I'd rather get this one back up and running.
PowerMac, G5 2004 Dual 1.8Ghz