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Note: After installing the new M.2 solid-state drive, ensure that you attach the new thermal pad to the new
M.2 solid-state drive.
Wi-Fi 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.
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Chapter 5
CRU replacement
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