Lenovo 4221 Laptop User Manual


 
Figure 3. Component locations
1 Heat sink
7 Front system fan
2 Microprocessor
8 Secondary hard disk drive (installed in some models)
3 Memory module 9 Primary hard disk drive
4 Optical drive 10 System board
5 Card reader (installed in some models)
11 Rear fan assembly
6 Front bezel assembly 12 Power supply
Locating parts on the system board
Figure 4 “System board part locations” on page 72 shows the locations of the parts on the system board.
Chapter 9. Replacing FRUs 71