Thanks for your reply.

I tried ASD version 2.6.3 (on archive.org)

I booted it. There are two options:

- the first seems to be for Mac OS 9. A window appeared and says my machine is not supported.
- the second seems to be for Mac OS X. The boot process display the Apple logo and then the fans get crazy after 3-4 minutes (same behaviour as the Mac OS X on my hard drive).

Is there another version of ASD for Power Mac G5?

(Edit: the black transparent window is like this: https://i0.wp.com/i.postimg.cc/Fs7y7LV7/Capture-d-e-cran-2019-04-24-a-22-47-29.png?resize=400%2C247&ssl=1)

[ Edited by Daff 07.08.2020 - 16:38 ]