Dell OptiPlex GX50 - Manual (Page 75)

7 Standby power light 19 Parallel port (upper) and serial port (2)(lower) connectors
8 PCI3 connector 20 Fan connector
9 PCI4 connector 21 Microprocessor and heat sink
10 PCI2 connector 22 Memory module (DIMM) connectors
11 PCI1 connector 23 DC power connector
12 CD audio connector 24 System board speaker
System Board Labels
Connector or Socket Description
AUDIO Line-in, line-out, and microphone jacks
AUX_PWR Standby power light
BATTERY Battery socket
CD_IN CD drive audio cable connector
DIAG_LED Diagnostic lights
DIMM_A and DIMM_B Dual in-line memory module (DIMM) sockets
DSKT Floppy drive interface connector
FAN Microprocessor fan connector
FRONTAUDIO Front-panel audio connector for onboard audio
FRONTPANEL Front-panel cable connector
IDE1 Primary IDE interface connector
IDE2 Secondary IDE interface connector
KYBD_MOUSE Keyboard and mouse connectors
MICROPROCESSOR Microprocessor connector
MODEM Telephony connector
MONITOR Video connector
NIC_USB Integrated network adapter connector and USB connectors
PAR_SER1_SER2 Parallel and serial connectors
PCI1, PCI2, PCI3, and PCI4 PCI expansion card connectors
POWER Main power input connector
PSWD Password jumper
H_RISER Horizontal riser board connector; vertical PCI cards
V_RISER Vertical riser board connector; horizontal PCI cards
SPEAKER Internal speaker
System Board Jumper