1. On my FreeBSD 4.10 the promise Ultra66 is recognized as ad5 by
default ata drive, no drive needed. However I have to manually run
/dev sh MAKEDEV ad5
in order to get root mounted from /dev/hd5

2. The BIOS and Windows (after installed drive) think the HDD is SCSI
disc but FreeBSD is smart enough to know it is IDE device. In freeBSD no
need to compile kernel with SCSI support.

3. Following advice, I did not plug CDROM onto the IDE card.

4. Seems not possible to adjust boot sequance on IDE card. It ssmes, if
I set to boot from SCSI (which is the IDE expansion card) in BIOS, it
always boot from first bootable device, from ad5 to ad8 (in FreeBSD term)

5. The extended hdd on IDE card r/w much faster in FreeBSD then in
Win2k. Not sure if it is just my feeling.