5. Slide the server into the rack.
6. Reconnect the external cables; then, reconnect the power cords and turn on the
peripheral devices and the server.
Attention: In a dc power environment, only trained service personnel other
than Lenovo service technicians are authorized to connect or disconnect power
to the dc power supply. See the documentation that comes with each dc power
supply.
Removing the DIMM air baffle
When you work with some optional devices, you must first remove the DIMM air
baffle to access certain components or connectors on the system board.
To remove the DIMM air baffle, complete the following steps.
1 DIMM air baffle 3 Finger hole
2 Riser card assembly 4 Release ring
1. Read the safety information that begins on page vii and “Installation guidelines”
on page 53.
2. Turn off the server and peripheral devices and disconnect all power cords and
external cables.
Attention: In a dc power environment, only trained service personnel other
than Lenovo service technicians are authorized to connect or disconnect power
to the dc power supply. See the documentation that comes with each dc power
supply.
3. Remove the cover (see “Removing the cover” on page 56).
Chapter 4. Removing and replacing server components 59
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