Number FRU description Self-service CRU Optional-service CRU
3
Microprocessor No No
4
Coin-cell battery
No Yes
5
Memory module Yes No
6
Flex storage enclosure * Yes No
7
Flex module *, see “FRUs in the flex module” on page 38.
8
Front access storage enclosure * Yes No
9
Front bezel Yes No
10
Dust shield * Yes No
11
Wi-Fi card module * No No
12
Wi-Fi card module shield * No No
13
M.2 solid-state drive heat sink * Yes No
14
M.2 solid-state drive * Yes No
15
Plastic holder * Yes No
16
Power button No No
17
Card reader *
No No
18
Front audio and USB assembly
No No
19
Slim optical drive *
Yes No
20
Slim optical drive metal shield *
Yes No
21
Front Wi-Fi antenna No No
22
Front fan * No No
23
Internal speaker * No No
24
Thermal sensor No No
25
ThinkStation LED
No No
26
3.5-inch storage-drive bracket * Yes No
27
Type-2 storage-drive cage * Yes No
28
Type-1 storage-drive cage with 3.5-inch storage-
drive bracket *
Yes No
29
2.5-inch storage drive * Yes No
30
Computer cover
Yes No
31
3.5-inch storage drive * Yes No
32
2.5-inch to 3.5-inch storage-drive converter * Yes No
33
Power supply assembly No Yes
34
PCIe card * Yes No
35
Cover presence switch (intrusion switch) Yes No
36
Rear Wi-Fi antenna No No
37
Rear fan No No
Chapter 2. Product overview 37