Internal Front Fan (Control Settings) - Magma Roben-3TX User Manual

Magma

Internal Front Fan (Control Settings)

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, Magma provides ROBEN-3 with the fan functioning at full speed (MAX). 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 when a low heat-producing card is installed in
Magma Roben-3.
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 SW500 on the expansion board. MAX = Fan runs at fast
mode. THERM = Fan is set to Thermistor controlled.
The DIPswitch SW500 controls the front fan of the Roben-3 expansion unit.
Roben 3 | Chapter 4 Advanced Technical Information 38