Lenovo THINKCENTRE 4485 - Manual (Page 126)

Locating components
Figure 51 “Component locations” on page 118 shows the locations of the various components in your
computer. To open the computer cover, see “Opening the computer cover” on page 121.
Figure 51. Component locations
1 Heat sink and fan assembly 8 System fan assembly
2 Microprocessor 9 Internal speaker (installed in some models)
3 Power supply assembly 10 Cover presence switch (Intrusion switch)
4 Memory module 11 Hard disk drive
5 Optical drive 12 Graphics card (installed in some models)
6 Front audio and USB assembly 13 System board
7 Front bezel
118 ThinkCentre Hardware Maintenance Manual