Dell OptiPlex 7440 Owner's Manual page 55

Feature
Power-supply diagnostic light
Table 29. Environmental
Feature
Temperature range:
Operating
Storage
Relative humidity (maximum):
Operating
Storage
Maximum vibration:
Operating
Storage
Maximum shock:
Operating
Storage
Altitude:
Operating
Storage
Airborne contaminant level
Specification
Green light — The power supply is turned on and is
functional. The power cable must be connected to the
power connector (at the back of the computer) and the
electrical outlet.
Specification
0°C to 35 °C (50 °F to 95 °F)
–40 °C to 65 °C (–40 °F to 149 °F)
20% to 80% (non-condensing)
20% to 80% (non-condensing)
0.26 GRMS at 5 to 350 Hz
2.2 GRMS at 5 to 500 Hz
40 G
45 G
0 to 5000 m (0 to 16,404 ft)
0 to 5000 m (0 to 16,404 ft)
G2 or lower as defined by ANSI/ISA-S71.04-1985
55