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IBM MICRO TOWER 2169 User Manual

Page 127

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125

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.