IBM X3950 X5 Problem Determination And Service Manual page 215

4. Before you attach a memory expansion module to the server and try to use it,
you must update the UEFI firmware with the latest level of firmware code. If
you attach and try to use the memory expansion module without updating the
UEFI firmware, you might get unexpected system behavior, or the server might
not power on. For special instructions to follow before you attach the memory
expansion module to the server, go to
To replace the system-board tray, complete the following steps:
Procedure
1. Reinstall the DIMMs (see "Replacing a memory expansion module DIMM" on
page 186).
2. Reinstall the air baffle (see "Replacing the memory expansion module air
baffle" on page 180).
3. Reinstall the hot-swap fans (see "Removing a memory expansion module
hot-swap fan" on page 183).
4. Grasp the system-board tray on both sides (near the stop-tabs) and align the
system-board tray with the chassis.
5. Slide the system-board tray forward until the tabs at the bottom of the handles
touch the chassis; then, close the handles and press firmly on the release latches
to snap them into the locked position.
6. Reinstall the bezel (see "Replacing the memory expansion module bezel" on
page 178).
7. Reconnect the power cords to the memory expansion module; then, connect all
external cables to the memory expansion module.
8. Turn on the peripheral devices and the host server.
Handle
Chapter 5. Removing and replacing components
Handle
199