Power Supply - IBM IntelliStation M Pro 6225 Hardware Maintenance Manual And Troubleshooting Manual

Power supply

Before you begin:
v Read the "Installation guidelines" on page 29.
v Read Appendix B, "Safety information," on page 115.
v Review the information in "System reliability guidelines" on page 29.
To remove the power supply, complete the following steps:
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IntelliStation M Pro Types 6225 and 6228: Hardware Maintenance Manual and Troubleshooting Guide
1. Turn off the computer, if it is on.
2. Disconnect the power cord from the power source and from the computer;
then, disconnect all external cables.
3. Lay the computer on its left side.
4. Remove the cover (see "Removing the side cover" on page 32).
5. Rotate the internal drive cage out of the computer (see "Rotating the internal
drive cage" on page 73).
Important: When disconnecting cables, note the cable routing and connector
labels for use during installation.
6. Disconnect the cables from the power supply to the system board and all
internal components.
Note: To provide extra space for the power supply removal, it might be helpful
to perform the following steps:
v Slide the drives in bay 1 and bay 2 (if installed) forward slightly (see
"Removing and replacing the CD-ROM or CD-RW drive" on page 45
for more information). It is not necessary to remove these drives.
v Disconnect the IEEE 1394 (Firewire) cable from the system board
(see "System board external connectors" on page 79 for the location
of the internal 1394 connector).
7. Push the internal drive-cage retention latch toward the front of the computer;
then, grasp the drive-cage handle and carefully rotate the cage until it rests on
the back panel of the computer.