> Hello Axton, thanks for your reply. > I do not want use RAID, I just need S-ATA > to connect HDD and install system on it.
You will be fine. I have Dell gear here that includes the Intel Matrix RAID ICH, and it doesn't have an issue with OpenBSD. The controller checks for a RAID pair at startup and then should revert to normal AHCI when none is found. Those chips also have a setting in the BIOS as an additional failsafe that will disable the R features and force them into AHCI or even IDE-compatible for older operating systems.
