Lenovo 10AX, Maintenance Manual

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The following table lists the major FRUs shown in Figure 13 “Component locations” on page 86 and identifies
which FRUs also are self-service CRUs or optional-service CRUs.
Notes:
• Self-service CRUs: These CRUs unplug or are secured by no more than two screws. Examples of
these types of CRUs include the keyboard, the mouse, any USB device, and the power cord. Other
self-service CRUs depending on product design might include memory modules, adapter cards, hard
disk drives, and optical drives.
• Optional-service CRUs: These CRUs are isolated parts within the computer and are concealed by an
access panel that is typically secured by more than two screws. Once the access panel is removed, the
specific CRU is visible.
Number FRU description Self-service CRU Optional-service CRU
1
Computer cover
No Yes
2
System fan No Yes
3
Thermal module No Yes
4
Cover presence switch (intrusion switch)
No Yes
5
Internal speaker No Yes
6
Microprocessor No Yes
7
Front Wi-Fi antenna (available in some models) Yes No
8
Power switch board No Yes
9
Power cord No No
10
ac power adapter No No
11
Memory modules Yes No
12
Battery No No
13
Wi-Fi card module (available in some models)
No Yes
14
Rear Wi-Fi antenna cable (available in some
models) Yes No
15
Rear Wi-Fi antenna (available in some models) Yes No
16
System board No No
17
Hard disk drive assembly (with a hard disk drive
or solid-state drive installed) No No
18
Keyboard Yes No
19
Mouse Yes No
Looking up FRU information
For detailed FRU information, such as the FRU part numbers and supported computer models, go to:
http:/www.lenovo.com/serviceparts-lookup
Locating parts on the system board
Note: Your computer comes with one of the following system boards.
Chapter 8
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Locations
87