Fujitsu Oracle M10-1, Service Manual

Page: 205 / 254

Caution -
Before you handle any components, wear a wrist strap to ground any static
electricity. If you perform this procedure without a wrist strap, individual
components or the overall system may be damaged. For details, see " 1.4 Precautions
on Static Electricity ."
Note - Record the positions of the cables before removing them to ensure that they are
reinstalled correctly.
firmware versions displayed for the current and reserve XCPs by the version
command do not match when you check the XCP firmware version after executing
the testsb command. This does not affect system operation. If you start the system
when the current and reserve XCPs have been switched, the CMU firmware stored
on the microSD card is automatically applied.
■
The type of motherboard unit varies depending on the number of CPU clocks.
■
If you replace the microSD card along with the motherboard unit, dispose of the
microSD card mounted on the old motherboard unit by appropriate means such
as cutting it with cutting pliers. The old microSD card stores the user information,
IP address, and other information set in the XSCF firmware.
16.5 Removing the Motherboard Unit and
Memory
This section describes the procedure for removing the motherboard unit.
Enable removal of the motherboard unit prior to attempting to remove it. For details,
see " Chapter 7 Maintenance Flow ."
16.5.1 Accessing the motherboard unit
1.
Remove all the cables connected to the external interface.
2. Pull the chassis out of the rack.
For details, see " 5.8.3 Pulling the chassis out from the rack ."
3.
Open the fan cover.
For details, see " 5.8.4 Opening the fan cover ."
4. Remove the upper cover.
For details, see " 5.8.5 Removing the upper cover ."
5.
Remove the air duct and the PSU backplane cover.
For details, see " 5.8.6 Removing the air duct and PSU backplane cover ."
Chapter 16 Maintaining the Motherboard Unit/Memory 191