96 Installing System Components6 Connect the SAS cables to the flex bay bracket backplane:a Connect the SAS cable from the SAS_B connector on the 1x8 backplane board to theSAS_B_OUT connector on the flex bay backplane board. See Figure 6-3 for the location of theSAS_B connector on the 1x8 backplane board.b Connect the SAS cable from the SAS RAID controller daughter card to the SAS_B_INconnector on the flex bay backplane board.7 Connect the power cable to the flex bay backplane board (see Figure 3-26) and to the powerconnector on the 1x8 backplane board (see Figure 6-3).SAS Controller Daughter CardYour system has a dedicated slot (INT STORAGE) for a SAS controller daughter card. See Figure 3-14.The SAS controller daughter card provides the SAS storage subsystem for your system’s internal harddrives.NOTE: The non-RAID SAS controller daughter card supports a maximum of four SAS or SATA hard drives. Thedrives must occupy drive bays 0 through 3.The optional SAS RAID controller daughter card supports up to 10 SAS or SATA hard drives and enablesyou to set up your hard drives in a RAID configuration. For more information, see the documentationthat came with your SAS RAID controller daughter card.Replacing the SAS RAID Controller Daughter Card Battery1 Disconnect the battery cable from the SAS RAID controller daughter card by releasing the tab on thecable connector on the daughter card and pulling the battery cable free. See Figure 3-27.2 Pull the connector through the routing hole on the expansion-bay bracket and then remove the batteryfrom the expansion-bay bracket by sliding the battery up out of the battery bay. See Figure 3-27.3 Insert the new battery into the battery bay, ensuring that the battery is aligned and fully seated into theslots. See Figure 3-27.4 Route the cable connector through the routing hole and connect the storage card battery cable to theSAS controller daughter card. See Figure 3-27.