Magma
ExpressBox 3400 | Chapter 4 Advanced Technical Information
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Internal Front Fan (Control Settings)
Some PCI Express cards produce substantial heat and must be cooled properly to eliminate problems with
overheating. Two Fans are located in the front of the enclosure to provide cooling required for the hottest
PCI Express Cards. Some graphics cards or GPU's require these fans to be at full capacity to prevent over-
heating.
As a safety measure, Magma provides EXPRESSBOX 3400 with the fan functioning at full speed (MAX).
However, noise is a concern for many applications. For noise sensitive applications, we have provided an
“Adjustable Fan Control” to help alleviate fan noise in situations when a low heat producing card is
installed in Magma EXPRESSBOX 3400.
The “Adjustable Fan Control” is located inside the front chassis
By default, the two fans will run at maximum speed when the DIP Switch is set to MAX (#7). Fans will run at
minimum speed if it set #1.
To set the FAN (speed) locate the small board inside the front chassis .
#7
= Fans are running at fast mode
and #1= fans are running at slowest speed.
