IBM 7985, Problem Determination And Service Manual

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To install a replacement power supply, complete the following steps:
1. Slide the power supply into the bay until the retention latch clicks into place.
2. Connect the power cord for the new power supply to the power-cord connector
on the power supply.
The following illustration shows the power-supply connectors on the back of the
server.
Power cord
connectors
Power supply 1
Power supply 2
3. Route the power cord through the power-supply handle and through any cable
clamps on the rear of the server, to prevent the power cord from being
accidentally pulled out when you slide the server in and out of the rack.
4. Connect the power cord to a properly grounded electrical outlet.
5. Make sure that the dc power LED and ac power LED on the power supply are
lit, indicating that the power supply is operating correctly.
Removing the battery
Note: After you replace the battery, you must reconfigure the server and reset the
system date and time.
To remove the battery, complete the following steps:
1. Read the safety information that begins on page vii and “Installation guidelines”
on page 105.
2. Follow any special handling and installation instructions that come with the
battery.
3. Turn off the server and all attached devices.
4. Disconnect all external cables and power cords.
5. Pull the server out of the rack.
6. Remove the cover (see “Removing the cover” on page 109).
7. Remove the riser-card assembly (see “Removing the riser-card assembly” on
page 154).
8. Remove the air baffle (see “Removing the air baffle” on page 111).
9. Disconnect any internal cables, as necessary.
10. Locate the battery on the system board.
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IBM System x3655 Type 7985 and 7943: Problem Determination and Service Guide