Lenovo ThinkCentre M72e Hardware Maintenance Manual (HMM) - Page 78

System board part locations on shows the locations of the parts on one type of system, board. - pci express x16

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Figure 4 "System board part locations" on page 74 shows the locations of the parts on one type of system board. Figure 4. System board part locations 1 4-pin power connector 2 Microprocessor 3 Microprocessor fan connector 4 Memory slot 1 (DIMM1) 5 Memory slot 2 (DIMM2) 6 Thermal sensor connector 7 24-pin power connector 8 Power fan connector 9 Parallel connector 10 Front panel connector (for connecting LED indicators and the power switch) 11 Front USB connector 1 (for connecting USB connectors 1 and 2 on the front bezel) 12 SATA connectors (3) 13 Front USB connector 2 (for connecting an additional USB device) 14 Clear CMOS (Complementary Metal Oxide Semiconductor) /Recovery jumper 15 Battery 16 Cover presence switch connector (Intrusion switch connector) 17 Serial (COM2) connector 18 Front audio connector 19 Internal speaker connector 20 PCI Express x1 card slots (2) 21 PCI Express x16 graphics card slot 22 System fan connector 74 ThinkCentre Hardware Maintenance Manual

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Figure 4 “System board part locations” on page 74 shows the locations of the parts on one type of 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 an additional USB
device)
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 the power switch)
21
PCI Express x16 graphics card slot
11
Front USB connector 1 (for connecting USB
connectors 1 and 2 on the front bezel)
22
System fan connector
74
ThinkCentre Hardware Maintenance Manual