11
SPEAKER1: Internal speaker
Pin
Signal Name
1
Signal
2
NC
3
Ground
4
VCC
J1: Case open detecting connector
(optional)
This connector allows the user to detect unauthorized intrusion to the case. It
will alert the user with a warning message when the case is turned on.
Pin
Signal Name
Function
1
Intruder
Case open detecting signal
2
GND
Ground
SJ1: Single color LED header
Pin
Signal Name
Function
1
ACPI LED
MSG LED (-) green
2
ACPI LED
MSG LED (-) green
3
SB5V
Power LED (+)
LED function:
S0
S1
S3
S4/S5
SJ1
1
Light
Blinking
Blinking
Dark