Dell Precision 340 - Manual (Page 56)

System Board Labels
1 floppy-drive connector (FLOPPY) 13 PCI riser board
2 battery 14 front-panel audio connector
3 removable-media drive connector (IDE SEC) 15 telephony connector
4 hard-drive connector (IDE PRI) 16 CD audio connector
5 front panel connector 17 back panel connectors
6 system board speaker 18 microprocessor power connector
7 password jumper 19 microprocessor/heat sink assembly
8 auxiliary hard-drive activity light connector 20 memory module sockets (RIMM 1 and 2)
9 CLR CMOS jumper 21 fan power connector
10 AGP card connector 22 memory module sockets (RIMM 3 and 4)
11 standby power light 23 main power connector
12 PCI expansion-card connectors (4)
Connector or Component Label
AGP AGP card connector
AUDIO Audio connectors
BATTERY Battery socket
CD CD audio connector
CLR CM Clear CMOS jumper
CPU Microprocessor/heat sink assembly
DIAG LED Diagnostic lights
FAN1 Microprocessor fan connector
FLOPPY Floppy-drive connector
FNT PNL Front panel connector
FNT PNL AUDIO Front-panel audio connector
KEY BRD_MOUSE PS/2 keyboard and mouse connectors
MAIN POWER Main power connector
PARALLEL Parallel connector
PCIn PCI expansion-card connector
IDE PRI Hard drive connector secondary IDE connector
IDE SEC Removable-media drive connector