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