Intergraph StudioZ GT RAX System Reference Manual page 86

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controlling fan speed. The temperature sensors are part of the system board and are not field
replaceable.
The Power LED (next to the Power button) on the front of the base unit indicates the following
power states of the system:
LED Power State
Green Working
Yellow Mechanical Off Off
Off Physical Off
System is... Explanation
On System is fully usable; power conservation is on a per-
device basis.
Very little power consumption. System can be turned
on manually by pressing the power button or remotely
using the Wake-on-LAN feature.
Off No power consumption. The system is disconnected
from AC line power, or is indicating that one of the
supply voltages is not correct. The system requires
reconnection of power or correction of voltage problem
and returns to the Working state only after a full
shutdown and restart.