Adding Parts 57System BoardIn the illustration, the text in parentheses indicates how items are identifiedon the system board.USB connectors(USB 01, USB 23)videoconnector (VID)parallelconnector (PAR)serialconnector (SER)PCI card connectors(PCI1, PCI2,PCI3, PCI4) page 65microprocessor socket(MICROPROCESSOR)secondary IDE channelconnector (IDE 2)page 58control panelconnector (FRONTPANEL)floppy driveinterface connector(DSKT)primary IDE channelconnector (IDE 1)page 58power inputconnector (POWER)battery socket(BATTERY) page 81password jumper(PSWD) page 80DIMM sockets(DIMM_A, DIMM_B)page 69keyboard/mouseconnectors (KEYBDMOUSE)power indicator (AUX PWR)speaker (SPEAKER)fan connector(FAN)diagnostic lights(DIAG LED)microphone, line-out,line-in (AUDIO)modem TADconnector (MODEM)CD audioconnector (CD IN)