Gigabyte GA-IMB1900TN - Page 21

26) GPIO_SET(GPIOStatusCongurationJumper)
Use this jumper to set the GPIO status of the LPT_GPIO header to HIGH or LOW.
1-2 Close: Set to HIGH level (Default)
2-3 Close: Set to LOW level.
1
1
28) CLR_CMOS (Clear CMOS Jumper)
 UsethisjumpertocleartheBIOSconguration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conguretheBIOSsettings(refertoChapter2,"BIOSSetup,"forBIOScongurations).
Open: Normal
Short: Clear CMOS Values
30) I2C (Inter-Integrated Circuit)
This header provides the I2C signals.
Pin No. Denition
1 I2C_SCL
2 I2C_SDA
3 GND
1
29) SMBUS (System Management Bus)
This header provides the SMBUS signals.
Pin No. Denition
1 SMB_CLK
2 SMB_DATA
3 GND
1
27) AT_ATX (ATX Power Switch Jumper)
This jumper allows you to select ATX or AT power mode.
1
1
1-2 Close: AT mode.
2-3 Close: ATX mode. (Default)
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