d. Install the SAS controller on the SAS riser card (see “Installing a SAS
controller on the SAS riser card” on page 81).
e. Install the riser-card assembly in the server (see “Installing the SAS riser
card and controller assembly” on page 78).
f. Connect the power cords and all external cables, and turn on the server and
peripheral devices.
Removing a SAS controller battery from the remote battery tray
To remove a SAS controller battery from the remote battery tray, complete the
following steps:
1. Read the safety information that begins on page “Safety” on page vii and
“Installation guidelines” on page 33.
2. Turn off the server and peripheral devices and disconnect all power cords and
external cables.
3. Remove the cover (see “Removing the cover” on page 37).
4. Locate the remote battery tray in the server and remove the battery that you
want to replace:
a. Remove the battery retention clip 2 from the tabs 1 that secure the
battery 4 to the remote battery tray 3.
b. Lift the battery and battery carrier from the tray and carefully disconnect the
remote battery cable from the interposer card on the SAS controller.
84 ThinkServer RD220 Types 3729, 3779, 3797, and 3798: Installation and User Guide
