10.6.3 only - update to 10.6.8 a lot things fail

Have to use PS2 keyboard, because legacy USB is disabled in BIOS.

Used ATA HDD and DVD-writer. SATA HDD works fine as well.

Must use add-on PCIe card and make QE/CI fully functional. I use 8400GS 256MB, and have to use following kexts (EFI strings, GraphicEnabler not working):
http://www.kexts.com/downloads.php?do=file&id=923

There is boot up delay due to IOATAfamily. But if using a fixed version, sleep/wake up would not work. System can wake up, but disk0s2 disappeared and must hard reset. Default IOATAfamily, sleep/wakeup works perfectly.

Only problem is slow USB. EHCI speed at 1-2 MB/s. Still searching for a fix.