IBM 7940, Руководство по диагностике и обслуживанию

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Removing and replacing Tier 1 CRUs
Replacement of Tier 1 CRUs is your responsibility. If IBM installs a Tier 1 CRU at
your request, you will be charged for the installation.
The illustrations in this document might differ slightly from your hardware.
Removing the cover
To remove the server cover, complete the following steps.
Captive screw
Attention:
v
For proper cooling and airflow, replace the cover before you turn on the server.
Operating the server for extended periods of time (more than 30 minutes) with
the cover removed might damage server components.
v
Do not remove the server cover with the power on.
1. Read the safety information that begins on page vii and “Installation guidelines”
on page 29.
2. Turn off the server and peripheral devices and disconnect all power cords and
external cables; then, remove the server from the rack.
3. Remove the cover from the server:
a. Loosen the captive screw on the back of the cover.
b. Disengage the tabs on the sides of the cover from the matching slots on the
sides of the chassis.
c. Slide the cover toward the rear of the server, and lift the cover off the server.
Installing the cover
To install the server cover, complete the following steps:
1. Position the internal cables so that they do not interfere with the cover
installation.
Important: Before you slide the cover forward, make sure that all the tabs on
the cover engage the chassis correctly. If all the tabs do not engage the chassis
correctly, it will be very difficult to remove the cover later.
2. Install the cover:
a. Place the cover on top of the server so that all the tabs engage the
matching slots on the chassis.
Chapter 4. Removing and replacing server components
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