Replacing The Fru System-Board And Chassis Assembly - IBM PS703 Service Manual

7. Complete this procedure before installing a new system board. Then, you can install the new system
board by performing the following procedure:
a. Shut down the operating system, turn off the blade server, and remove the blade server from the
BladeCenter unit. See "Removing the blade server from a BladeCenter unit" on page 231.
b. Perform the procedure for replacing the system board to install the new system board. See

"Replacing the FRU system-board and chassis assembly."

Replacing the FRU system-board and chassis assembly
FRUs must be replaced only by trained service technicians. Replace the system board and chassis
assembly. When replacing the system board, you will replace the system board, blade base (chassis),
microprocessors, and heat sinks as one assembly. After replacement, you must either update the system
with the latest firmware or restore the pre-existing firmware that the customer provides on a diskette or
CD image.
Note: See "System-board layouts" on page 8 for more information on the locations of the connectors and
LEDs on the system board.
To replace the system-board and chassis assembly, complete the following steps:
1. Read the Safety topic and the "Installation guidelines" on page 229.
2. Shut down the operating system, turn off the blade server, and remove the blade server from the
BladeCenter unit. See "Removing the blade server from a BladeCenter unit" on page 231.
3. Carefully lay the blade server on a flat, static-protective surface, with the cover side up.
4. Open and remove the blade server cover. See "Removing the blade server cover" on page 233.
Note: If you are servicing the base unit of a PS704 blade server, you must first remove the expansion
unit. For more information, see "Removing the expansion unit for a PS704 blade server" on page
237.
5. If you are servicing a base unit and not an expansion unit, remove the bezel assembly. See
"Removing the bezel assembly" on page 240.
6. Remove any of the installed components listed below from the system board; then, place them on a
non-conductive surface or install them on the new system board and chassis assembly.
v I/O expansion card. See "Removing and installing an I/O expansion card" on page 253.
v Hard disk drives. See "Removing a hard-disk drive" on page 242.
v DIMMs. See "Removing a memory module" on page 249.
v Management card. See "Removing the tier 2 management card" on page 262.
v Battery. See "Removing the battery" on page 258.
7. Touch the static-protective package that contains the system-board and chassis assembly to any
unpainted metal surface on the BladeCenter unit or any unpainted metal surface on any other
grounded rack component; then, remove the assembly from its package.
8. Install any of the components listed below that were removed from the old system-board and chassis
assembly.
v I/O expansion card. See "Removing and installing an I/O expansion card" on page 253.
v Hard disk drives. See "Installing a hard-disk drive" on page 243.
v DIMMs. See "Installing a memory module" on page 251.
v Management card. See "Installing the tier 2 management card" on page 263.
v Battery. See "Installing the battery" on page 258.
Note: Install a DIMM filler or a hard drive filler in any location where a DIMM or hard drive is not
present to avoid machine damage.
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Power Systems: Problem Determination and Service Guide for the IBM PS703 (7891-73X) and PS704 (7891-74X)