Hi Roger, Not entirely sure what is causing your problems, but there are several options in your BIOS that are worth investigating.
http://www.supermicro.com/manuals/motherboard/HT2000/MNL-H8DSP-8i.pdf Plug & Play OS (might be worth setting this to "No") KBC Clock Source (try 8MHz) S-ATA Mode (IDE/MMIO or RAID, see if OpenBSD's behaviour changes) ACPI Version Features (1.0/2.0 or 3.0) Another issue may be the UDMA mode, change "wd" again via UKC and specify the flags 0xdfc (UDMA5,PIO 4). Just some suggestions, which you may have already tried. -Bryan.
