Dell Precision WorkStation 420 Service 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
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
Jumpers")