Lenovo ThinkSystem SR650 Quick Start Manual page 6

To remove a hot-swap power supply, complete the following steps:
Watch the procedure. A video of the removal process is available:
• Youtube:
https://www.youtube.com/playlist?list=PLYV5R7hVcs-A25P7vBoGa_wn7D7XTgDS_
• Youku: http://list.youku.com/albumlist/show/id_50483444
Step 1. If the server is in a rack, adjust the cable management arm (CMA) to gain access to the power
supply bay.
If you have installed the 2U CMA Upgrade Kit for Toolless Slide Rail or Toolless Slide Rail Kit with
2U CMA, do the following:
Figure 4. CMA adjustment
a. Press down the stop bracket
b. Rotate the CMA out of the way to gain access to the power supply.
Step 2. Disconnect the power cord from the hot-swap power supply.
Note: If you are replacing two power supplies, do the power supply replacement one by one to
ensure that the power supply to the server is not interrupted. Do not disconnect the power cord
from the secondly replaced power supply until the power output LED for the firstly replaced power
supply is lit. For the location of the power output LED, rFigure 2 "LEDs of power supply" on page
2efer to .
6 6
1 and rotate it to the open position.