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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.
Figure4. System board part locations
1 PS/2 adapter connector 21 Clear CMOS (Complementary Metal Oxide Semiconductor)
/Recovery jumper
2 Microprocessor fan connector
22 Front USB connector 2 (for connecting the card reader)
3 Microprocessor 12 V power connector
23 eSATA connector (for connecting eSATA adapter)
4 Microprocessor 24 Auxiliary LED connector
5 Memory fan connector
25 Front panel connector (for connecting LED indicators and
power switch)
6 Hard disk drive fan connector
26 Thermal sensor connector
7 Memory slot 3 (DIMM3)
27 Front audio connector
8 Memory slot 7 (DIMM7)
28 Internal speaker connector
9 Memory slot 4 (DIMM4) 29 PCI Express x4 card slot
10 Memory slot 8 (DIMM8) 30 PCI card slot
11 Hard disk drive enablement module (optional) 31 PCI Express x16 graphics card slot
12 24-pin power connector
32 PCI Express x4 card slot (x16 mechanical)
13 Front fan connector
33 PCI Express x16 graphics card slot
14 Internal USB connector
34 Rear fan connector
Chapter 1. Product overview 11