I've experimented with all the BIOS settings but they made no difference. However booting is possible with "pci=off" (or "pci=conf2", seems to have the same effect), although the machine is not in a terribly useful state that way (no network, slow disk I/O etc).
I managed to get fc6 installed (didn't have edgy isos at hand and network install wasn't possible) and built a kernel with the contents of quirk_via_abnormal_poweroff commented out which boots fine.
Some more info:
I've experimented with all the BIOS settings but they made no difference. However booting is possible with "pci=off" (or "pci=conf2", seems to have the same effect), although the machine is not in a terribly useful state that way (no network, slow disk I/O etc).
I managed to get fc6 installed (didn't have edgy isos at hand and network install wasn't possible) and built a kernel with the contents of quirk_via_ abnormal_ poweroff commented out which boots fine.