Dell EMC PowerEdge M640 Installation and Service Manual

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Environmental specifications

NOTE: For additional information about environmental certifications, please refer to the Product Environmental Datasheet located with the Manuals & Documents on Dell.com/poweredgemanuals

Table 1. Temperature specifications . When the system is in continuous operation (for altitude less than 950 m or 3117 ft), the temperature specification ranges from 10°C to 35°C (50°F to 95°F) with no direct sunlight on the equipment. NOTE: Maximum of 145 W 22 core processor is supported in systems with eight 2.5-inches drives, two PCI slot chassis, and 75 W single wide active GPU. When the system is not in operation, the temperature specification is –40°C to 65°C (–40°F to 149°F). The Maximum temperature gradient for both opertaion and non-opertaional systems is 20°C/h (36°F/h).
Temperature	Specifications
Storage	–40°C to 65°C (–40°F to 149°F)
Continuous operation (for altitude less than 950 m or 3117 ft)	10°C to 35°C (50°F to 95°F) with no direct sunlight on the equipment.
Maximum temperature gradient (operating and storage)	20°C/h (68°F/h)

Table 2. Relative humidity specifications . For a non-operational system, the ambient relative humidity ranges from 5% to 95% with 33°C (91°F) maximum dew point. Atmosphere must be non-condensing at all times. For an operational system, the ambient relative humidity ranges from 10% to 80% with 29°C (84.2°F) maximum dew point.
Relative humidity	Specifications
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 26°C (78.8°F) maximum dew point.

Table 3. Maximum vibration specifications . The maximum vibration specification of an operational system is 0.26 Grms at 5 Hz to 350 Hz (all operation orientations).The maximum vibration specification of a non-operational system is 1.87 Grms at 10 Hz to 500 Hz for 15 min (all six sides tested).
Maximum vibration	Specifications
Operating	0.26 G _rms at 5 Hz to 350 Hz (all operation orientations).
Storage	1.87 G _rms at 10 Hz to 500 Hz for 15 min (all six sides tested).

Table 4. Maximum shock specifications . The maximum shock specification of an operational system is six consecutively executed shock pulses in the positive and negative x, y, and z axes of 6 G for up to 11 ms. The maximum shock specification of a non-operational system is 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.
Maximum shock	Specifications
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 5. Maximum altitude specifications . The maximum altitude specification for an operational system is 3048 m (10,000 ft). The maximum altitude specification for a non-operational system is 12,000 m (39,370 ft).
Maximum altitude	Specifications
Operating	3048 m ( 10,000 ft)
Storage	12,000 m (39,370 ft)

Table 6. Operating temperature de-rating specifications . If the operating temerature of a system is up to 35 °C (95 °F), the maximum temperature is reduced by 1 °C/300 m (1 °F/547 ft) above 950 m (3,117 ft). If the operating temperature of a system ranges from 35 °C to 40 °C (95 °F to 104 °F), the maximum temperature is reduced by 1 °C/175 m (1 °F/319 ft) above 950 m (3,117 ft). If the operating temperature of a system ranges from 40 °C to 45 °C (104 °F to 113 °F), the maximum temperature is reduced by 1 °C/125 m (1 °F/228 ft) above 950 m (3,117 ft).
Operating temperature de-rating	Specifications
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).