Dell Vostro 220s (Late 2008) - Manual (Page 41)

Working on Your Computer
41
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)
22 PCI Express x1
connector (PCIE_X1 2) 23 PCI Express x16
connector (PCIE_x16) 24 PCI Express x1
connector (PCIE_X1 1)
25 audio connectors 26 one LAN and two USB
ports 27 USB ports (2)
28 USB ports (2) and
E-SATA connector 29 chassis fan connector 30 Display Port
31 video (VGA) and
parallel ports 32 PS/2 mouse and
keyboard connectors