To improve the reliability of the GS 700 Polycom has introduced a new feature in the software release 6.0.1 that enhances the ventilation flow. Please update your GS 700 to get this enhancement.
from the release notes:
Maximum Ventilation Option
The Maximum Ventilation Option reduces thermal stress to the power supply by increasing the fan speed
from 35% to 80%. This is useful when the system is used in higher thermal areas such as enclosures with
limited ventilation, 24/7 operations, hosting multipoint calls and sharing content.
By default the option is checked On resulting in the increase of the fan speed up to 80%. The fan runs at a
lower speed (35%), thus reducing the fan speed and increasing thermal stress on the power supply, when
the option is un-checked.
The Maximum Ventilation Option is applicable for the Polycom RealPresence Group Series 700 system only.
To set the Maximum Ventilation Option:
In the web user interface, go to Diagnostics > System > System Log Settings > Maximum Ventilation
Option.