Hello,

inspired by zukow thread about powermac G5 here is some info about MorphOS 3.12 on unsupported iMac G5/2.1 (PowerMac12.1):

+ installation works out of the box from instalation CD
+ builtin graphics (Radeon X600 XT) supported
+ sound is supported
+ ide is supported
+ sata is supported
+ usb is supported
+ temperature sensors are supported
+ onboard lan is supported
+ onboard wifi is supported
+ firewire is supported (at least for HDD connection)

- no bootlogo
- fans runs all the time at 100%
- graphics sometimes crashes (GraphicsSpeed, SDLBench, SDL game 1941), but except these three other tested works - for example Quake 3, Tower57, DOSBox(=SDL), OWB with youtube videos.
- camera not supported

Majority of OS works with no problem. Fluently and quickly.
See SystemMonitor and GraphicBoards.
Now I have my iMacG5 MorphOS registered and after addition of NIC I will register also PowermacG5 Quad.

I made some tests and compares speed of machines:
Pegasos is overclocked to 1.33GHz. AmigaOne X1000 runs AmigaOS 4.1FE, all others MorphOS 3.12
Dhystone+Whetstone and games
Exact numbers are in tables in this article (CZ).

Today iMacG5 is suitable for web surfing and gaming and other joy - with small gfx limitations. For me the biggest problem is loud fans.

Generally I am very satisfied with support of "unsupported" computers from MorphOS Devs. Many thanks again.
MorphOS support for unsupported is better then some other OS support for supported.

I have one question - how to debug via firewire?
iMAC firevire port works OK with external HDD. After graphics crashes I want to debug iMAC, but with no success.
I have SDK installed (3.14)
firewire connected with Pegasos2 (SDK 3.12?)
if I set iMAC/logtool prefs: ohci1394_mon SM, on Peg2 nothing visible
if I try run ohci1394_mon SM from shell there is allways error.
Pls, what is correct settings? Is it SN on one side and DPO on other - like here?
There is also info:"Added Firewire debugging to bootargs on the Macs", but I don't find exact bootarg in docs.