*) All 6 SATA ports when in IDE or AHCI mode.
*) The 2 SATA ports on the JMicron controller.
*) USB.
*) Network, both ports.
*) Sil3132, after setting the PCIclass for the driver.
*) Sound using ALCinject on the ALC882D (using version 0.4 or 0.2a).
*) PATA port of on the JMicron controller.
What's working but flaky:
*) Firewire (sometimes it gives me 40 errors on boot-up regarding bad self ids and it doesn't work thereafter. Seems I have to clear CMOS to get it working again, don't know what's causing it though.)
How-to:
*) "About this Mac" crashed all the time (it is now fully working
I'm using BIOS 15 and running my C2D E6300 at 420MHz FSB => 2.94GHz. Sweet.
EDIT: I did use a HDD were I had installed OSX on an Asus P5B but I could not get it to install on the AB9 using either PATA DVD or USB DVD. I have not tried SATA DVD and it would be interesting to hear about any success on that. Besides not installing and not being able to wake from sleep this board is a mush better one than the Asus P5B for running OSX in my oppinion (much snappier, especially network), however I returned it since I could not install on it (maybe I should have gotten a SATA DVD??).
EDIT2: The install DVD loads the installer when a SATA DVD is used. The installer also sees all HDDs (at least when in IDE mode).
EDIT3: Sound DOES work using ALCinject.
