It is really bad that new boards still need bootable images to flash the bios, Asus and Gigabyte only require a storage media like partitioned fat(32) usb drive to read the bios file and flash it with integrated flash tool. If you can live with 1 core you can try
to see if acpi tables are so broken that it does not start. A new kernel would also interesting as acpi was changed serveral times. Maybe a short test with moblin which uses 2.6.29 rc7.
I just purchased one of these boards to install ubuntu to, I will try installing it this weekend with that connector connected and will try to let everyone know how it works out.
I am back, just finished installing the board in my computer and am posting this using the mobo and 8.10 ubuntu.
I did hook up the molex plug even though the manual said it was unnecessary except for crossfire/ sli mode. I am not doing sli however.
My specs are Core 2 Duo e6850, Geforce 8600, 4 gigs ram, Ubuntu linux 8.10 x64.
I didn't use an installer disk I just moved the asrock board into the case and hooked up all the drives. I could try booting the live cd but I don't believe that would give problems when a previous install does not.
Network, sound, opengl 3d desktop all seem to be working well. Maybe the phoronix reviewer should try again.