System Board Layout - Dell ChengMing 3980 Service Manual

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System board layout

The following image displays the system board layout of the computer.
1
Power switch connector
3
SATA 2 Connector(white color)
5
SATA 3 Connector(black color)
7
HDD_ODD_PowerCable Connector(SATA_PWR)
9
ATX Power Connector(ATX_SYS)
11
M.2 PCIe/SATA 1 Connector
13
PCI Connector (SLOT3)
15
PCI-e X1 Connector(SLOT1)
17
Processor Socket(CPU)
19
Memory Connectors(DIMM1/DIMM2)
2
Internal Speaker Connector(INT_SPKR)
4
Coin-cell battery Connector
6
SATA 0 Connector(Blue color)
8
Internal USB connector(WF_BT_USB)
10
Service Mode / Password clear / CMOS clear Jumper
12
PCI Connector ( SLOT4)
14
PCI-e X16 Connector(SLOT2)
16
CPU Power Connector(ATX_CPU)
18
CPU Fan Connector(FAN_CPU)
Removing and installing components
9

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