Lenovo 62 Desktop - Manual (Page 74)

• 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 audio and USB assembly No Yes
7 Front bezel Yes No
8 Hard disk drive No Yes
9 System board No No
10 Battery Yes No
11 Peripheral Component Interconnect (PCI) card
(installed in some models) Yes No
12 Keyboard Yes No
13 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
70 Lenovo Hardware Maintenance Manual