feil

hello. so i got hands on a supermicro server board and wantet to upgrade with that my old unraid nas. i bought an LSI - SAS9201-16E card for all the hdds 15 of now. but if i disable the boot options of the card , then the hdds dont show up at unraid. i flashed the card to the latest p 20 firmware. if i leave the boot option on the card on, i can only start with 12 hdds because of an problem of the board^^ A SuperMicro H8SGL(-F) won't boot from USB properly when there are more than 12 bootable items in the server. so any suggestions on what to do?^^ i also dont find the card anymore with the s2flash dont know why, but it shoes all hdds at startup