Lenovo 3493DFU Manuel D’Utilisation
Locating parts on the system board
Figure 4 “System board part locations” on page 12 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 an additional USB
device)
3
Microprocessor fan connector
14
Front USB connector 3 (for connecting an additional USB
device)
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 the power switch)
21
System fan connector
11
Front USB connector 1 (for connecting USB
ports 1 and 2 on the front bezel)
12
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