Lenovo 7D2F, Maintenance Manual

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1. For the optimal performance, make sure both PHMs and corresponding memory modules are
installed to the processor and memory expansion tray.
2. Air baffle is required for airflow that creates proper cooling. Make sure proper air baffles for
system configuration is installed before the power is turned on.
Figure 114. Expansion tray air baffle installation
After installing the processor and memory expansion tray, complete the following steps:
1. Reinstall power supply 2 (see “Install a hot-swap power supply unit” on page 97 ).
2. Reinstall the top cover (see “Install the top cover” on page 134 ).
3. Reconnect the power cords and any cables that you removed.
4. Power on the server and any peripheral devices.
Security bezel replacement
Use this procedure to remove or install the security bezel.
Remove the security bezel
Follow the instructions in this section to remove the security bezel.
Before removing the security bezel:
1. Read the safety information and installation guidelines (see “Safety” on page iii and “Installation
Guidelines” on page 49 ).
2. If the server is installed in a rack, slightly slide out or remove the server from the rack.
3.
Watch the procedure
A video of this procedure is available at YouTube:
https://www.youtube.com/playlist?list=
PLYV5R7hVcs-B2y7oAb54mfyuLrIusa_qE
.
Step 1. Insert the key that comes with the server and rotate it clockwise to unlock the security bezel to the
open position.
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ThinkSystem SR850P Maintenance Manual