Lenovo 1271 Personal Computer User Manual


 
Locating parts on the system board
Figure 4 “System board part locations” on page 11 shows the locations of the parts on the system board.
Figure 4. System board part locations
1 4-pin power connector
12 SATA connectors (3)
2 Microprocessor
13 Front USB connector 2 (for connecting additional USB
devices)
3 Microprocessor fan connector
14 Clear CMOS (Complementary Metal Oxide Semiconductor)
/Recovery jumper
4 Memory slot 1 (DIMM1)
15 Battery
5 Memory slot 2 (DIMM2) 16 Cover presence switch connector (Intrusion switch
connector)
6 Thermal sensor connector
17 Serial (COM2) connector
7 24-pin power connector 18 Front audio connector
8 Power fan connector
19 Internal speaker connector
9 Parallel connector
20 PCI Express x1 card slots (2)
10 Front panel connector (for connecting LED
indicators and power switch)
21 PCI Express x16 graphics card slot
11 Front USB connector 1 (for connecting USB
ports 1 and 2 on the front bezel)
22 System fan connector
Chapter 1. Product overview 11