IBM Aptiva 2170 Hardware maintenance service manual - page 186
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2171 and 2172 System Board Connector F u n c t i o n
Connector
Function
Connect to
CN1
Universal Serial Bus (USB)
connector
USB device
CN2
ATX Power Supply Connector
Power supply
CN3
Upper: PS/2 mouse connecto
Lower: PS/2 keyboard connecto
PS/2 pointing device
PS/2 keyboard
CN4
Upper: Printer port
Lower-left: COM1
Lower-right: COM2
Printer or parallel device
Serial device
Serial device
CN5
Flopy diskette drive connector
Diskette drive
CN6
Upper: Game port (15-pin female)
Lower: (R-to-L)
Microphone-in port
Stereo line-in port
Stereo line-out port
Joystick
Microphone
Audio signal input
Speaker
CN7
Wake-on LAN connector
LAN adapter card
CN8
CD/DVD audio input connector
CD/DVD-ROM drive
CN9
Power button connector
Power button
CN10
Secondary IDE channel
IDE drive
CN11
Primary IDE channel
IDE drive
CN12
Modem voice line-in connector
Modem card
CN13
Modem ring-in connector
Modem card
CN14
Hard disk LED connecto
HDD LED
JP4
Turbo LED connector
Reserved
JP5
Reset Switch
Reserved
JP7
Power LED connector
Power LED
FN1
Fan alarm connector
Processor fan
FN2
Fan connector
Processor fan