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18
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.
Pin
1
2
3
4
CASE: Chassis Intrusion Detect Header
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
Short Chassis cover is removed
Open Chassis cover is closed
ME_UNLOCK: ME Unlock Header
Pin 1-2
Short Unlock
Open Lock
COM: Onboard serial port header
Connect a serial port extension bracket to this header to add a serial port to your
system.
Pin
1
2
3
4
5
6
7
8
9
10
Signal Name
SPDIFOUT
VCC
KEY
GND
Function
Function
Signal Name
DCDB
Data Carrier Detect
SINB
Serial Input
SOUTB
UART B Serial Output
DTRB
UART B Data Terminal Ready
GND
Ground
DSRB
Data Set Ready
RTSB
RART B Request to Send
CTSB
Clear to Send
RI
Ring Indicator
Key
No pin
Installing the Motherboard
Function
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