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30) SMBUS (System Management Bus)
Use this header to read/control SMBUS signals.
Pin No.
Definition
1
SMB_CLK
2
SMB_DATA
3
GND
1
28) CI (Chassis Intrusion Header)
This motherboard provides a chassis detection feature that detects if the chassis cover has been removed.
This function requires a chassis with chassis intrusion detection design.
Pin No.
Definition
1
Signal
2
GND
29) CLR_CMOS (Clear CMOS Jumper)
Use this jumper to clear the BIOS configuration and reset the CMOS values to factory defaults. To clear
the CMOS values, use a metal object like a screwdriver to touch the two pins for a few seconds.
•
Always turn off your computer and unplug the power cord from the power outlet before clearing the CMOS values.
•
After system restart, go to BIOS Setup to load factory defaults (select Load Optimized Defaults) or manually
configure the BIOS settings.
Open: Normal
Short: Clear CMOS Values
1
31) I2C (Inter-Integrated Circuit)
Use this header to read/control I2C signals.
Pin No.
Definition
1
I2C_SCL
2
I2C_SDA
3
GND
1
