Hi, some remarks from your unsupport team.

1. Prepare a CD with MorphOS 3.15
- for quick test you can put HD from existing PowerMac G5 AGP machine to PCIe one
- sound is supported
- ide is supported
- sata is supported
- usb is supported
- fans handling is supported
- temperature sensors are supported
- onboard lan is not supported
- pcie Rs232 cards for getting debuglog may work (but i have one and it doesn't)

2. Add some supported Radeon card
- nvidia isn't handled and it won't be
- Original X1900GT mac version should work
- Flashed with MAC bios R500 series should also be handled, Sapphire X1950XT (with boobs) works after being reflashed to Mac OF (it works also with PC bios)
- Mac Bios handling in MorphOS differ a bit for handling card with PC Bios but more or less everything is handled (including fan control both on mac and pc bioses)
- if flashing doesnt work please check with other atiflash version, some version works, some not, flashing under MacosX is not supported for PCIe cards
- With Mac bios OF screen is visible, with PC bios it isn't
- If any of card doesnt work, please check/buy another one :)
- VGA, DVI works
- RadeonHD may work but 3d is not working there so R500 is the best option
- Most of Radeons need additional cable with 12V, make sure that seller adds it or buy, or make it

3. Add some supported Network card
- older Atheros pcie based WIFI or realtek 8168
- newer airports (WiFi) from x64 macs don't work
- Airport Extreme (WiFi) for G5 PCie is supported, it's not the same model as for AGP G5
- you may also try some USB network cards but they aren't reliable (or poseidon isn't reliable - who knows)

4. Turn on machine
5. Install MorphOS
6. Register MorphOS
7. RCTW looks odd on R500 (in 3.12-3.14), 3D rendering is fixed in MorphOS 3.15
8. Audio ports handling has been fixed in 3.15.

Photos of tested GFX/Network cards:
https://photos.app.goo.gl/8Z31VYa72oX6ASsa6

Please post any photo of card which work here, i'll add it to the google gallery.

Q&A:
1.
Q: Why G5 PCIe?
A: Because it has 4 USB sockets instead of 3 in G5 AGP!!! (additionally 2x more Cache per CPU, lower temperature and 2x more FPS in Q3, faster transfer to gfx memory so also faster scrolling in OWB)

[ Edited by zukow 10.01.2021 - 15:01 ]