Dell Vostro 410 (Late 2008) - Manual (Page 61)

2. Ensure that the computer and all attached devices are turned off. If your computer and attached devices did not automatically turn off when you shut
down your operating system, press and hold the power button for about 4 seconds to turn them off.
Inside View of Your Computer
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System Board Components
1 power supply 2 optical drive bay
3 optional optical drive bays 4 floppy drive or Media Reader
(optional)
5 USB, audio, 1394 (optional)
connectors
6 3.5-inch drive bays (4)
7 chassis fan
1 power connector (PWR2) 2 CPU fan power 3 memory module
connectors (4)
4 main power connector
(PWR1) 5 floppy drive connector
(FLOPPY) 6 CMOS jumper (CLEAR
CMOS)
7 password jumper
(CLEAR_PW) 8 serial ATA drive
connector (SATA2) 9 serial ATA drive
connector (SATA3)
10 front panel connector 11 serial ATA drive
connector (SATA1)
12 USB1 system board
connector
13 serial ATA drive connector 14 USB2 system board 15 USB3 system board