Compaq 247320-003 - Deskpro 4000 - 5166 Model 2500/CDS Reference Manual page 13

Ref. Component
Dual-State Power Button
Power-On Light
Hard Drive Activity Light
Diskette Drive Activity Light
Stereo Headphone Jack
Headphone Volume Control
CD-ROM Drive Busy Indicator
Diskette Eject Button
Emergency Eject Hole (LS-120
Drive only)
CD-ROM Drive Slot
CD-ROM Eject Button
* CD-ROM drive models only
Function
Turns the computer on and off; can be configured as a
standby button.
Turns on when power to the computer is turned on and
blinks (optional) in Energy Saver mode.
Turns on when the hard drive is reading or saving data.
Turns on when the diskette drive is reading or saving data.
Connects headphones to the CD-ROM drive.*
Adjusts the volume of the CD-ROM drive.*
Flashes amber when the drive is reading a CD.*
Ejects a loaded diskette.
Allows you to insert a CD into the drive.*
Ejects a CD from the drive.*