Fujitsu SPARC M10-1, Service Manual

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Note - In the case of a dual power feed, make a note of the positions of the power cords
before removing them to ensure that they are reinstalled correctly.
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 Notes on
Static Electricity ."
Note - Record the positions of the cables before removing them to ensure that they are
reinstalled correctly.
Note -
Make a note of the positions of the fan units before removing them to ensure that they
are reinstalled correctly.
For details, see " 5.2 Stopping the System ."
6.
Remove all the power cords from the power supply unit.
For details, see " 5.3.1 Removing the power cords ."
7.4 Removing the Motherboard Unit
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 " 7.3 Preparing the Motherboard Unit for Removal ."
7.4.1 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 " 5.3.2 Pulling the chassis out from the rack ."
3.
Open the fan cover.
For details, see " 5.3.3 Opening the fan cover ."
4.
Remove the upper cover.
For details, see " 5.3.4 Removing the upper cover ."
5.
Remove the air duct and the PSU backplane cover.
For details, see " 5.3.5 Removing the air duct and PSU backplane cover ."
6.
Remove all the fan units.
For details, see " 10.4.2 Removing a fan unit ."
Chapter 7 Maintaining the Motherboard Unit 63