looked just for fun into the memtest logfile and found more information.
this may help to support supermicro boards, its a x11spm-f
2018-12-03 15:38:57 - Failed to retrieve SPD info. Enumerating PCI bus...
2018-12-03 15:38:57 - Scanning PCI for devices:
.............
2018-12-03 15:38:58...