Dell EMC PowerEdge R740 - Page 33

Temperature Specications
Maximum temperature gradient (operating and storage) 20°C/h (68°F/h)
Table 23. Relative humidity specications
Relative humidity Specications
Storage 5% to 95% RH with 33°C (91°F) maximum dew point. Atmosphere must be
non-condensing at all times.
Operating 10% to 80% relative humidity with 29°C (84.2°F) maximum dew point.
Table 24. Maximum vibration specications
Maximum vibration Specications
Operating 0.26 G
rms
at 5 Hz to 350 Hz (all three axes).
Storage 1.88 G
rms
at 10 Hz to 500 Hz for 15 min (all six sides tested).
Table 25. Maximum shock specications
Maximum shock Specications
Operating Six consecutively executed shock pulses in the positive and negative x, y,
and z axes of 6 G for up to 11 ms.
Storage Six consecutively executed shock pulses in the positive and negative x, y,
and z axes (one pulse on each side of the system) of 71 G for up to 2 ms.
Table 26. Maximum altitude specications
Maximum altitude Specications
Operating
3048 m (10,000 ft)
Storage 12,000 m (39,370 ft)
Table 27. Operating temperature de-rating specications
Operating temperature de-rating Specications
Up to 35°C (95°F) Maximum temperature is reduced by 1°C/300 m (1°F/547 ft) above 950 m
(3,117 ft).
35°C to 40°C (95°F to 104°F) Maximum temperature is reduced by 1°C/175 m (1°F/319 ft) above 950 m
(3,117 ft).
40°C to 45°C (104°F to 113°F) Maximum temperature is reduced by 1°C/125 m (1°F/228 ft) above 950 m
(3,117 ft).
Dell EMC PowerEdge R740 Installation and Service Manual
Technical specications
33