57 Chapter 5
C_INTRUSION: Chassis detect header
This detects if the chassis cover has been removed. This function needs a chassis equipped with intrusion
detection switch and needs to be enabled in BIOS.
INT_SPK1: Internal speaker
OBR: Button recovery jumper
PRINTER: Oboard parallel port header
Pin Signal Name Pin Signal Name
1 +5V 2 KEY
3 SPDIF 4 GND
Pin Signal Name
1 Caseopen
2GND
Pin Signal Name Pin Signal Name
1 Output_L 2 GND
3 Output_R 4 Ground
5 GND 6 GND
7 N/A 8 VCC
Pin Signal Name
1OBR
2GND
Pin Signal Name Pin Signal Name
1STROBE 2PD0
3 PD1 4 PD2
5 PD3 6 PD4
7 PD4 8 PD6
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