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Locating parts on the system board
“Locating parts on the system board” on page 80 shows the locations of the parts and connectors on
the system board.
Figure 9. Locations of the parts and connectors on the system board
1 4-pin power connector
16 Front panel connector (for connecting LED indicators and
power switch)
2 Microprocessor
17 Front USB 2.0 connector (for connecting additional USB
2.0 devices)
3 Microprocessor fan connector
18 Clear CMOS (Complementary Metal Oxide Semiconductor)
/Recovery jumper
4 Memory slot 1 (DIMM1) 19 Serial (COM2) connector
5 Memory slot 2 (DIMM2)
20 Internal speaker connector
6 Memory slot 3 (DIMM3)
21 Front audio connector
7 Memory slot 4 (DIMM4) 22 PCI card slot
8 Thermal sensor connector
23 PCI Express x1 card slots (2)
9 4-pin power connectors (2) 24 PCI Express x16 graphics card slot
10 14-pin power connector
25 System fan connector
11 eSATA connector 26 Cover presence switch connector (Intrusion switch
connector)
12 Parallel connector 27 HDMI connector
13 Front USB 3.0 connector (for connecting USB
3.0 ports 1 and 2 on the front bezel)
28 Battery
80 ThinkCentre E93 Hardware Maintenance Manual