Download DFI G5C630-DR User`s manual

BIOS Setup
3
Smart 2ndFAN Temperature
This field is used to select the temperature at which the 2nd fan
runs at full speed. The temperature will vary within the range of the
tolerance value selected in the field below.
2ndFAN Tolerance Value
This field is used to select the tolerance value of the system’s temperature. The options are 1, 2, 3, 4 and 5. If you selected 3, it allows
the temperature to run 3 degrees higher or lower. The 2nd fan will
smartly adjust it’s speed in accordance to the temperature.
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