18
Installing the Motherboard
CASE: Chassis Intrusion Detect Header
Short Chassis cover is removed
Open Chassis cover is closed
This detects if the chassis cover has been removed. This function needs a chassis
equipped with instrusion detection switch and needs to be enabled in BIOS.
Pin 1-2 Function
ME_UNLOCK: ME Unlock Header
Short Unlock
Open Lock
Pin 1-2 Function
SPDIFO: SPDIF out header
This is an optional header that provides an SPDIFO (Sony/Philips Digital Interface)
output to digital multimedia device through optical fiber or coaxial connector.
1 SPDIFOUT
2 VCC
3 KEY
4 GND
Pin Signal Name
COM: Onboard serial port header
Connect a serial port extension bracket to this header to add a serial port to your
system.
1 DCDB Data Carrier Detect
2 SINB Serial Input
3 SOUTB UART B Serial Output
4 DTRB UART B Data Terminal Ready
5 GND Ground
6 DSRB Data Set Ready
7 RTSB RART B Request to Send
8 CTSB Clear to Send
9 RI Ring Indicator
10 Key No pin
Pin Signal Name Function
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