Lenovo 5391 Personal Computer User Manual


 
1 Hard disk drive (installed in some models) 5 Optical drive
2 Heat sink 6 Memory module
3 Internal speaker (installed in some models)
7 Power supply assembly
4 System fan assembly
Locating parts on the system board
Figure 4 “System board part locations” on page 9 shows the locations of the parts on the system board.
Figure 4. System board part locations
1 PCI card slot
13 Memory slot 3
2 PCI Express x16 graphics card slot
14 Front panel connector
3 Internal speaker connector
15 PS/2 keyboard and mouse connector
4 Cover presence switch connector (Intrusion switch
connector)
16 Serial (COM) connector
5 Battery 17 Front audio connector
6 Thermal sensor connector 18 24-pin power connector
7 Microprocessor fan connector 19 Power fan connector
8 Microprocessor
20 SATA connectors (2)
9 4-pin power connector
21 eSATA connector
10 Memory slot 2
22 Front USB connectors (2)
11 Memory slot 1
23 Clear CMOS (Complementary Metal Oxide
Semiconductor) /Recovery jumper
12 Memory slot 4
Chapter 1. Product overview 9