The Adaptec 6405/6805 RAID controller will be not recognized and didn´t start in the system during a reboot (Alt-Ctrl-Del and power button).
Only when we remove the power cable and start again the controller starts.
We had different systems with the S1200BTL board in a SR1304 system and Chenbro chassis.
Configurations is with the E3-1230/1240 CPU and 16 GB RAM.
All with the same problem.