One Stop Systems EB3200, Руководство пользователя

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One Stop Systems
ExpressBox 3200 | 4 Advanced Technical Information 53
4.8 Fan Control Switch
The fan speed control feature is not available with this current model. The fan is set to run a
maximum speed all the time.
4.8.1 What is a Fan control?
Some PCI Express cards produce substantial heat and must be cooled properly to eliminate over heating problem. One Fan is located in the
front of the enclosure to provide cooling required for the hottest PCI Express Cards. Some graphics cards GPU's require these fans to be at full
capacity to prevent over-heating.
As safety measure, OSS provides an expansion unit with the fan functioning at full speed (MAX). The expansion unit is using a 72 cfm with
5600-RPM fan. However, noise is a concern for many applications. For noise sensitive applications, we have provided this Thermistor setting
(THERM) to help alleviate fan noise in situations.
By default, the fan will run at maximum speed when the DIP Switch is to MAX that control fan speed. When setting to Thermistor (THERM), the
fan speed is controlled by the temperature inside the enclosure. Thermally controlled fans will run at maximum speed when the Thermistor
senses temperature at or above an upper limit. Fans will run at minimum speed if the temperature is at or below lower limit.
To set the FAN (speed) locate the red Dipswitch SW2 on the expansion board.
MAX = Fan runs at fast mode.
THERM = Fan is set to Thermistor controlled.