ASRock FM2A88M Pro3+ - FreeBSD
Hardware info on main page.
2017-09-09: I booted FreeBSD 11.0-release off that usb stick again, to check if all drives show up in FreeBSD - they do. Default (without selecting the boot menu)
this usb stick (or rather, the FreeBSD 11.0 image on it) boots from the BIOS version. Tried selecting UEFI boot from the menu, it had trouble mounting the
root filesystem automatically, but I just mounted it manually at the root mount prompt. All drives show up now also (tested with
2017-08-29: I booted FreeBSD 11.0-release off a usb stick everything appears to work.