Wireless Wan Card - Lenovo ThinkEdge SE30 User Manual

Wireless WAN card

The following information is only for the computer with user-installable modules. Ensure that you use only a
Lenovo-authorized wireless module specifically tested for this computer model. Otherwise, the computer will
generate an error-code beep sequence when you turn on the computer.
Prerequisite
Before you start, read Appendix B "Important safety information" on page 51 and print the following
instructions.
Avoid contact with the hot computer. During operation, the computer becomes hot enough to burn the skin.
Before you touch the computer, turn off the computer, disconnect power, and wait approximately 30 minutes
for the computer to cool.
For access, do the following:
1. Remove any media from the drives and turn off all connected devices and the computer.
2. Disconnect all power cords from electrical outlets and disconnect all cables from the computer.
3. Remove the bottom cover. See "Bottom cover" on page 38.
Replacement steps
Note: A thermal pad might cover the wireless WAN card. To access the wireless WAN card, peel off the
thermal pad first.
.
Chapter 5 CRU replacement
43