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FW-8894 User Manual
CON3: PMBUS/TTL
Pin
Description
1
PSU_TTL1
3
5
7
PMBUS_DAT
JOPEN1: Chassis Open Detect mainboard protection jumper. (a short-pin cap will be connected to the top
compartment of the system chassis. When the top compartment is lifted/removed, the board functions will
be disabled once the jumper cap is lifted along with the top compartment. This is to protect the board
from being tampered by anyone who removes the top compartment.
JOPEN1: Case open
Pin
Description
1
GND
JOPEN2: MGT port SEL (IPMI/I210). This is the management port function selection jumper.
Pin
Description
1
MGT_SEL
JCMOS: Clear CMOS
Pin
Description
1
VRTC
3
GND
Pin
Description
2
PSU_TTL2
4
GND
6
PMBUS_CLK
8
PMBUS_ALERT#
Pin
Description
2
CSOPEN#
Pin
Description
2
IPMI_DETECT#
Pin
Description
2
PCH_RTCRST#
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