I have your X5DP8-G2 board. The system has Adaptec 2010S installed. When the system boots up, I can see the SCSI BIOS, followed by Adaptec I2O BIOS, then the system stops and shows "Hit for Adaptec Setup, Waiting for devices". Why?
You must've installed the 2010S in the wrong PCI slot. 2010S ZCR can only be installed in PCIX#4 (the green slot) in X5DP8-G2.