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17) CI (Chassis Intrusion Header)
17) CI (Chassis Intrusion Header)
This motherboard provides a chassis detection feature that detects if the chassis cover has been
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.
removed. This function requires a chassis with chassis intrusion detection design.
18) CLR_CMOS (Clearing CMOS Jumper)
18) CLR_CMOS (Clearing CMOS Jumper)
Use this jumper to clear the CMOS values (e.g. date information and BIOS configurations) and
Use this jumper to clear the CMOS values (e.g. date information and BIOS configurations) and
reset the CMOS values to factory defaults. To clear the CMOS values, place a jumper cap on the
reset the CMOS values to factory defaults. To clear the CMOS values, place a jumper cap on the
two pins to temporarily short the two pins or use a metal object like a screwdriver to touch the two
two pins to temporarily short the two pins or use a metal object like a screwdriver to touch the two
pins for a few seconds.
pins for a few seconds.
• Always turn off your computer and unplug the power cord from the power outlet before
• Always turn off your computer and unplug the power cord from the power outlet before
clearing the CMOS values.
clearing the CMOS values.
• After clearing the CMOS values and before turning on your computer, be sure to remove
• After clearing the CMOS values and before turning on your computer, be sure to remove
the jumper cap from the jumper. Failure to do so may cause damage to the motherboard.
the jumper cap from the jumper. Failure to do so may cause damage to the motherboard.
• After system restart, go to BIOS Setup to load factory defaults (select Load Optimized
• After system restart, go to BIOS Setup to load factory defaults (select Load Optimized
Defaults) or manually configure the BIOS settings (refer to Chapter 2, "BIOS Setup," for
Defaults) or manually configure the BIOS settings (refer to Chapter 2, "BIOS Setup," for
BIOS configurations).
BIOS configurations).
GA-M68SM-S2 Motherboard
Pin No.
Pin No.
1
1
1
1
2
2
Open: Normal
Open: Normal
Short: Clear CMOS Values
Short: Clear CMOS Values
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Definition
Definition
Signal
Signal
GND
GND
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