IBM 7985, Руководство по диагностике и обслуживанию

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Removing the power backplane
To remove the power backplane, complete the following steps.
Power backplane
connector
1. Read the safety information that begins on page vii and “Installation guidelines”
on page 105.
2. Turn off the server and all attached devices.
3. Disconnect all external cables and power cords.
4. Slide the server from the rack and place it on a flat, non-conductive surface.
5. Remove the power supplies from the power-supply bays (see “Removing a
hot-swap power supply” on page 138).
6. Remove the cover (see “Removing the cover” on page 109).
7. Remove the fan-bracket assembly (see “Removing the fan-bracket assembly”
on page 136).
8. Grasp the power backplane and slide it toward the right side of the server.
9. Disconnect the power cable from the hard disk drive backplane.
10. Lift the power backplane out of the server.
11. If you are instructed to return the backplane, follow all packaging instructions,
and use any packaging materials for shipping that are supplied to you.
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IBM System x3655 Type 7985 and 7943: Problem Determination and Service Guide