General Description 2-56 Memory board6-1: Memory board ejector6-2: Memory board Power lamp6-3: Memory board Attention lamp6-4: Memory board Redundancy lamp6-5: Memory board Attention switch7 Additional memory board slotThe number following the bold-faced character indicates the slot number.Additional memory board shall be installed in the slot #2, #3, and then #4 in the order.8 5.25-inch device bayDAT (digital audio tape) drive or optical disk drive may be installed in the 5.25-inch device bay.Slot #1 (right) and slot #2 (left).9 Additional 3.5-inch disk bayInstall the N8154-13F additional HDD cage in this bay. With the cage, up to thirteen hard diskdrives can be connected to the server.