• 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
Power supply assembly
No
Yes
2
Memory modules
Yes
No
3
Optical drive (available in some models)
Yes
No
4
Front audio and USB assembly
No
Yes
5
Front bezel
Yes
No
6
Front WiFi antenna
No
Yes
7
Front fan
No
Yes
8
Hard disk drive
No
Yes
9
Battery
Yes
No
10
WiFi card module
No
Yes
11
WiFi adapter card
No
Yes
12
Rear WiFi antenna
Yes
No
13
System board
No
No
14
Microprocessor
No
No
15
Peripheral Component Interconnect (PCI) card
Yes
No
16
Heat sink and fan assembly
Yes
No
17
Keyboard
Yes
No
18
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
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ThinkCentre Edge Hardware Maintenance Manual
Summary of Contents for 3376
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