I've tried setting the ports to AHCI and IDE mode then I've tried changing legacy and native IDE mode in both AHCI and IDE modes. The problem happens all the time no matter what the SATA ports are set to in the BIOS.
During POST (or right after it, I see this regarding SMART):
http://img860.imageshack.us/img860/7810/smartfail.jpgFor those who can't see the picture, it's the part after POST that shows the Serial ATA AHCI BIOS version and lists what's connected to the controller.
The listing for the 600GB VelociRaptor says:
Port-01: Hard Disk, WDC WD600HLHX-01JJPV0
SMART command failed
The drives work fine otherwise in other computers and on the SATA-II ports on this GA-H67MA-UD2H-B3. The first two 600GB VelociRaptors were rendered unusable though after some time when I was testing to see if any of my wiping programs would work on them (before I found what was causing the problems - not working on the SATA-III ports).