Lenovo THINKSERVER 3821 - Manual (Page 182)

To install the replacement battery, do the following:
1. Follow any special handling and installation instructions that come with the
replacement battery.
2. Insert the replacement battery 1 :
a. Hold the battery in a vertical orientation so that the smaller side is facing the
socket.
b. Place the battery into its socket, and press the battery towards the socket
until it clicks into place. Make sure that the battery clip holds the battery
securely.
3. Install and lock the left-side cover (see “Installing the left-side cover” on page
158).
4. Reconnect the external cables and power cords; then, turn on the attached
devices and turn on the server.
Note: You must wait approximately 2 1/2 minutes after you connect the server
power cord to an electrical outlet before the power-control button becomes
active.
5. Start the Setup Utility and reset the configuration:
v Set the system date and time.
v Set the power-on password.
v Reconfigure the server.
See “Starting the Setup Utility” on page 252 for details.
Removing a hot-swap power supply
If you remove a hot-swap power supply, observe the following precautions.
Statement 8:
CAUTION:
Never remove the cover on a power supply or any part that has the following
label attached.
Hazardous voltage, current, and energy levels are present inside any
component that has this label attached. There are no serviceable parts inside
these components. If you suspect a problem with one of these parts, contact
a service technician.
Note: If only one hot-swap power supply is installed in the server, you must turn off
the server before removing the power supply.
174 ThinkServer TD200x Types 3719, 3821, 3822, and 3823: Hardware Maintenance Manual