Dell Precision 420 - Manual (Page 42)

1 CD-ROM drive audio connector
2 Main power 1 connector (desktop chassis)
3 Diskette connector
4 Main power 2 connector (desktop chassis)
5 Battery
6 RIMM (memory) sockets
7 SCSI narrow connector
8 Secondary EIDE connector
9 Suspend-To-RAM LED
10 Jumper block (see " System Board Jumpers ")
11 System board screw
12 LVD SCSI connector
13 Primary EIDE connector
14 Standby power LED
15 Control panel connector
16 MT power 2 connector (mini tower chassis)
17 MT power 1 connector (mini tower chassis)
18 Modem (TAPI) connector
19 Card-cage fan power connector
20 Auxiliary sound input connector
21 PCI/RAID expansion card connector
22 Auxiliary hard-disk drive access LED connector
23 PCI expansion slots
24 AGP graphics slot
25 Remote wakeup on LAN connector
26 Primary processor 0 socket
27 Network cable connector
28 Diagnostic LEDs
29 USB connectors
30 Secondary processor 1 socket
31 Line-in connector
32 Line-out connector