System Board Components - Dell Vostro 420 Service Manual

1 power supply
3 optical drive
5 I/O panel
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System Board Components
Vostro 420
1 power connector
(PWR2)
4 main power connector
(PWR1)
7 serial ATA hard drive
connector (SATA3)
10 serial ATA hard drive
connector (SATA0)
13 serial ATA 5.25-inch
drive connector
(SATA6)
16 USB3 system board
connector
19 PCI connector (PCI3)
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2 chassis fan
4 media card reader (optional)
6 3.5-inch hard drive bays (2)
2 processor heat 3 memory module connectors (4)
sink/fan assembly (DIMM_1, DIMM_2, DIMM_3,
power DIMM_4)
5 battery socket 6 serial ATA 5.25-inch drive
connector (SATA4)
8 serial ATA hard drive 9 serial ATA hard drive connector
connector (SATA2) (SATA1)
11 serial ATA 5.25-drive 12 front I/O panel connector
connector (SATA5)
14 USB1 connector (from 15 USB2 connector (from front I/O
front I/O panel) panel)
17 audio connector 18 PCI connector (PCI4)
(F_AUDIO)
20 PCI connector (PCI2) 21 PCI connector (PCI1)
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