IBM SAN Volume Controller, Hardware Maintenance Manual

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17. Remove the remaining eight screws (
2
in Figure 270) that secure the system board to the chassis.
Put the screws in a safe place.
18. Lift the system board out of the server.
Removing the SAN Volume Controller 2145-8G4 system board
You must remove the system board if you are instructed to replace the SAN Volume Controller 2145-8G4
system board FRU.
The system board field-replaceable unit (FRU) consists of the planar. You must order alcohol wipes and
thermal grease separately. There are two versions of the SAN Volume Controller 2145-8G4. The original
version (Rev 1) has two microprocessors and eight 1 GB memory modules. The second version (Rev 2)
has one microprocessor and four 2 GB memory modules.
Before you proceed with the system board removal, ensure that you do the following:
v Identify and label all the cables that are attached to the SAN Volume Controller 2145-8G4 node so they
can be replaced in the same port.
v
Have a static-protected surface available to hold the components that you removed from the old
system board.
You must follow all standard safety and handling instructions. The components that you will be handling
are electrostatic-discharge sensitive. Take precautions to avoid damage from static electricity. Wear an
anti-static wrist strap and use a static-protected mat or surface. For more information, see “Handling
static-sensitive devices” on page xix.
1
2
svc00498
2
Figure 270. SAN Volume Controller 2145-8A4 system board and microprocessor retention module
Chapter 2. Removing and replacing parts
247