10. Install the simple-swap hard disk drives that you removed from the hard disk
drive cage (see “Replacing a simple-swap hard disk drive” on page 217).
11. Install the air baffle (see “Replacing the air baffle” on page 185).
12. Install the side cover (see “Replacing the side cover” on page 182).
13. Stand the server back up in its vertical position.
14. Install bezel (see “Replacing the bezel” on page 188).
15. Reconnect the external cables and power cords; then, turn on the attached
devices and turn on the server.
Removing the hot-swap hard disk drive backplane
This procedure applies only to the 5U server model with hot-swap power supplies.
To remove the hot-swap backplane on the 5U server model with hot-swap power
supplies, complete the following steps.
1. Read the safety information in “Safety” on page vii and “Installation
guidelines” on page 35.
2. Turn off the server and all attached devices; then, disconnect all power cords
and external cables.
3. Unlock and remove the side cover (see “Removing the side cover” on page
38).
4. Remove the lower bezel (see “Removing the lower bezel” on page 42).
5. Remove the hot-swap SAS/SATA hard disk drives installed in the hard disk
drive cage (see “Removing a hot-swap hard disk drive” on page 219).
6. Carefully turn the server on its side so that it is lying flat, with the system
board facing up.
Attention: Do not allow the server to fall over.
Figure 148. Pushing hard disk drive cage into chassis for 4U server model with non-hot-swap
power supplies
240 System x3100 M5 Type 5457: Installation and Service Guide