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If this happens,
you may turn the speed control knob fully clockwise to increase
the fan speed, set 'CPU Fan Detected' to 'Disabled' in the BIOS
settings, or set the slowest rotation of the CPU fan in the
system monitoring program to less than or equal to 1500 RPM.
Some mainboards do not boot if the rotation of the CPU fan is below
a certain number of RPM. If the BIOS settings are updated, Silent
Mode can be used. For more information on updating your BIOS ,
please refer to your mainboard manufacturer's web site.