Lenovo ThinkCentre Edge 3484, Hardware Maintenance Manual

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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
Power supply assembly No Yes
2
Heat sink and fan assembly Yes No
3
Microprocessor No Yes
4
Memory modules Yes No
5
Optical drive
Yes No
6
Front WiFi antenna No Yes
7
Front audio and USB assembly No Yes
8
Front bezel Yes No
9
Hard disk drive No Yes
10
System board
No No
11
Battery Yes No
12
WiFi card module No Yes
13
WiFi adapter card No Yes
14
Rear WiFi antenna Yes No
15
Peripheral Component Interconnect (PCI) card
(installed in some models) Yes No
16
Keyboard Yes No
17
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
Chapter 8
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Locations
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