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Figure5. ThinkCentre M93/p system board part locations
1 PS/2 keyboard and mouse connector
16 Power fan connector
2 4-pin power connector 17 Front panel connector
3 Microprocessor
18 Front USB connector 2 (for connecting USB ports 1 and 2
on the front bezel)
4 Microprocessor fan connector
19 Front USB connector 1 (for connecting additional USB
devices)
5 Memory slot 1 (DIMM1) 20 Clear CMOS (Complementary Metal Oxide Semiconductor)
/Recovery jumper
6 Memory slot 2 (DIMM2) 21 Serial (COM2) connector
7 Memory slot 3 (DIMM3)
22 Internal speaker connector
8 Memory slot 4 (DIMM4)
23 Front audio connector
9 Thermal sensor connector
24 PCI card slot
10 Hard disk drive fan connector
25 PCI Express card slot (physical link width x16; negotiable
link width x4, x1)
11 4-pin power connectors (2) 26 PCI Express x1 card slot
12 14-pin power connector
27 PCI Express x16 graphics card slot
13 eSATA connector 28 System fan connector
14 Parallel connector
29 Cover presence switch connector (intrusion switch
connector)
15 SATA 3.0 connectors (3)
30 Battery
14 ThinkCentre M83, M93/p User Guide