Lenovo 10HU Hardware Maintenance Manual page 42

Figure 4. Major FRUs and CRUs
The following table lists the major FRUs shown in the illustration above and identifies which FRUs are
also 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
1
Orchid Tilt Stand base
2
Orchid Tilt Stand
3
Slide cover
4
Memory module shield
5
Bottom cover
6
I/O shield
7
Card reader
8
I/O board
9
I/O bracket
10
Intrusion switch
11
VESA mount bracket
12
Integrated camera
13
Storage drive bracket
14
Storage drive
15
Computer cover
16
LCD panel
17
Power cord
18
Power adapter
19
Wi-Fi antennas (2)
20
Internal speakers (2)
21
LED board
22
Control button board
23
System fan
24
Heat sink
25
Integrated camera holder
26
Integrated camera slider
27
System board
28
Coin-cell battery
34
ThinkCentre X1 Hardware Maintenance Manual
FRU description Self-service CRU Optional-service CRU
Yes
No
Yes
Yes
No
No
No
No
No
No
No
No
No
No
No
No
Yes
Yes
No
No
No
No
No
No
No
No
No
No
No
Yes
No
No
Yes
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No