Lenovo H520g Lenovo H520g Hardware Maintenance Manual - Page 72

Locating parts on the system board

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Locating parts on the system board Figure 4 "System board part locations" on page 68 shows the locations of the parts on the 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 SATA connectors (3) 10 Front panel connector (for connecting LED indicators and power switch) 11 Front USB connector 1 (for connecting USB ports 1 and 2 on the front bezel) 12 Clear CMOS (Complementary Metal Oxide Semiconductor) /Recovery jumper 13 Front USB connector 2 (for connecting additional USB devices) 14 Front USB connector 3 (for connecting additional USB devices) 15 Battery 16 Serial (COM2) connector 17 Front audio connector 18 Internal speaker connector 19 PCI Express x1 card slots (2) 20 PCI Express x16 graphics card slot 21 System fan connector 68 Lenovo H520gHardware Maintenance Manual

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Locating parts on the system board
Figure 4 “System board part locations” on page 68 shows the locations of the parts on the system board.
Figure 4. 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 additional USB
devices)
3
Microprocessor fan connector
14
Front USB connector 3 (for connecting additional USB
devices)
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 power switch)
21
System fan connector
11
Front USB connector 1 (for connecting USB
ports 1 and 2 on the front bezel)
68
Lenovo H520gHardware Maintenance Manual