CD2

Auxiliary audio connector for CD-

 

ROM/DVD drive

FP1

Auxiliary microphone and speaker out

J1

Chassis open detect connector

J2

Connector for two-color LED

JP1

Clear CMOS memory jumper

JP2

Function disabled – not used

JP3

Force system bus frequency to 100

 

MHz jumper

*LED1

This red indicator turns on if your system is suspended to RAM. In a suspend to RAM, the system turns off most of the power-consuming components except for the 3.3V required to refresh the memory. If LED1 is turned on, it warns you that the computer is still active and you should not carry out any work on the mainboard.

**LED2

This green indicator turns on whenever the system is turned on. It warns you that the system is active and you should not carry out any work on the mainboard.

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Image 127
IBM 2169 manual LED2, FP1