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Locating parts on the system board
Figure 4 “System board part locations” on page 12 shows the locations of the parts on the system board.
Figure4. System board part locations
1 4-pin power connector
12 Clear CMOS (Complementary Metal Oxide Semiconductor)
/Recovery jumper
2 Microprocessor
13 Front USB connector 2 (for connecting an additional USB
device)
3 Microprocessor fan connector
14 Front USB connector 3 (for connecting an additional USB
device)
4 Memory slot 1 (DIMM1)
15 Battery
5 Memory slot 2 (DIMM2) 16 Serial (COM2) connector
6 Thermal sensor connector 17 Front audio connector
7 24-pin power connector 18 Internal speaker connector
8 Power fan connector
19 PCI Express x1 card slots (2)
9 SATA connectors (3) 20 PCI Express x16 graphics card slot
10 Front panel connector (for connecting LED
indicators and the power switch)
21 System fan connector
11 Front USB connector 1 (for connecting USB
ports 1 and 2 on the front bezel)
12 ThinkCentre User Guide