Zalman Fanmate 2 Variable Speed Fan Controller
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When booting a computer, in which the Zalman Fanmate 2 Fan Controller is used with the CPU fan, an alarm sound may be generated by a system monitoring program to indicate that the rotation of the CPU fan is slow.
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 motherboard manufacturer's website.