IBM Aptiva 2170 Hardware maintenance service manual - page 183
Parts/Test Point Locations 149
2170 System Board Connector Functions
Connector
Function
Connect to...
CN1
Universal Serial Bus (USB)
connector
USB device
CN2
USB HUB connector
USB HUB device
CN3
Upper: PS/2 mouse port
Lower: PS/2 keyboard port
PS/2 pointing device
PS/2 keyboard
CN4
ATX Power Supply Connector
Power supply
CN5
I/O Port:
Upper: Printer port
Lower-left: COM1
Lower-right VGA
Printer or Parallel device
Serial device
Monitor
CN6
HDD LED connector
HDD LED
CN7
COM1
Serial device
CN9
Reset button
Reset button
CN10
Floppy diskette drive connector
Flopy diskette drive
CN11
Primary IDE Channel
IDE drive
CN12
Secondary IDE Channel
IDE drive
CN15
Upper: Game port (15-pin female)
Lower: (R-to-L)
Microphone-inport
Stereo line-in port
Stereo line-out port
Joystick
Microphone
audio input device
Speaker
CN16
Power LED connector
Power LED
CN17
Power Button Connector
Power Button
CN18
Wake-up on LAN connector
LAN adapter card
CN19
Modem Ring-In connector
Modem adapter card
CN20
CD/DVD audio input connector
CD/DVD-ROM drive
CN21
Fax-voice modem connector
Modem card
FN2
Fan connector
Processor fan
JP1
Passive/Active speakers jumpers
JP2
Passive/Active speakers jumpers
JP4
Password check