HP EliteBook 8440P - Entering a BIOS administrator password; Using Computer Setup DriveLock

Maintenance and Service Guide 8–1
8
Connector pin assignments
Audio-out (headphone)
Audio-in (microphone)
Pin Signal
1 Audio out, left channel
2 Audio out, right channel
3 Ground
Pin Signal
1 Audio signal in
2 Audio signal in
3 Ground