Lenovo THINKSERVER 3821 - Manual (Page 186)

1 Release latch
2 Hot-swap power supply
5. Remove the power supply filler from the second power supply bay.
6. Slide the new power supply partially into the empty power supply bay. Pinch the
orange release latch and push the power supply the rest of the way into the bay
until it is seated.
7. Install the left-side cover.
8. Connect one end of the new power cord into the connector on the back of
power supply, and connect the other end of the power cord to a properly
grounded electrical outlet.
9. Make sure that the ac power LED on the top of each power supply is lit,
indicating that the power supply is operating correctly. If the server is turned on,
make sure that the dc power LED on the top of the power supply is lit also.
If you have other optional devices to install or remove, do so now. Otherwise, go to
“Completing the installation” on page 233.
178 ThinkServer TD200x Types 3719, 3821, 3822, and 3823: Hardware Maintenance Manual