Dell GX280DT - GX280 Desktop Computer User Manual page 227

1 hard drive
2 internal speaker
3 chassis intrusion switch
4 system board
5 padlock ring and security cable slot
System Board Components
1 power connector (POWER)
2 RTC reset jumper (RTCRST)
3 floppy drive connector (DSKT)
4 internal speaker (SPEAKER)
5 CD/DVD drive connector (IDE)
6 front-panel connector (FRONTPANEL)
6 heat sink and blower assembly
7 power supply
8 floppy drive
9 CD/DVD drive
15 line-in, line-out, and microphone connectors (AUDIO)
16 network connector (NIC) and USB connector (USB2)
17 USB connectors (USB1)
18 diagnostic lights (DIAG LED)
19 serial port connector (SER1) and video connector (VGA)
20 parallel port connector (PAR)