Dell PowerEdge C6420 EMC Installation and Service Manual - Page 31

Operating temperature derating specifications, Relative humidity specifications

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NOTE: When operating in the expanded temperature range, ambient temperature warnings may be reported in the System Event Log. Operating temperature derating specifications Table 19. Operating temperature Operating temperature derating < 35°C (95°F) Specifications Maximum temperature is reduced by 1°C/300 m (1°F/547 ft) above 950 meters (3,117 ft) 35°C-40°C (95°F-104°F) Maximum temperature is reduced by 1°C/175 m (1°F/319 ft) above 950 meters (3,117 ft) > 45°C (113°F) Maximum temperature is reduced by 1°C/125 m (1°F/228 ft) above 950 meters (3,117 ft) Relative humidity specifications Table 20. Relative humidity specifications Relative humidity Storage Operating Specifications 5% to 95% RH with 33°C (91°F) maximum dew point. Atmosphere must be non-condensing at all times. 10% to 80% relative humidity with 29°C (84.2°F) maximum dew point Temperature specifications Table 21. Temperature specifications Temperature Storage Continuous operation (for altitude less than 950 m or 3117 ft) Fresh air Maximum temperature gradient (operating and storage) Specifications -40°C-65°C (-40°F-149°F) 10°C-35°C (50°F-95°F) with no direct sunlight on the equipment. For information about fresh air, see Expanded Operating Temperature section. 20°C/h (68°F/h) NOTE: Some configurations require a lower ambient temperature for more information, see the Standard operating temperature specifications. Thermal restrictions Table 22. Thermal restrictions matrix for dual processors Maximum continuous operating inlet temperature (°C) 3.5" Chassis 2.5" Chassis TDP Proc DPN Max 12x 8x 4x 24x 20x 16x 12x Watts No. of DIMM HDDs HDDs HDDs HDDs HDDs HDDs HDDs 8x HDDs 4x HDDs No-BP Chassi s N/A Technical specifications 31

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NOTE:
When operating in the expanded temperature range, ambient temperature warnings may be reported in the
System Event Log.
Operating temperature derating specifications
Table 19. Operating temperature
Operating temperature derating
Specifications
< 35°C (95°F)
Maximum temperature is reduced by 1°C/300 m (1°F/547 ft)
above 950 meters (3,117 ft)
35°C–40°C (95°F–104°F)
Maximum temperature is reduced by 1°C/175 m (1°F/319 ft)
above 950 meters (3,117 ft)
> 45°C (113°F)
Maximum temperature is reduced by 1°C/125 m (1°F/228 ft)
above 950 meters (3,117 ft)
Relative humidity specifications
Table 20. Relative humidity specifications
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 29°C (84.2°F) maximum dew
point
Temperature specifications
Table 21. Temperature specifications
Temperature
Specifications
Storage
–40°C–65°C (–40°F-149°F)
Continuous operation (for altitude less than 950 m or 3117 ft)
10°C–35°C (50°F-95°F) with no direct sunlight on the
equipment.
Fresh air
For information about fresh air, see Expanded Operating
Temperature section.
Maximum temperature gradient (operating and storage)
20°C/h (68°F/h)
NOTE:
Some configurations require a lower ambient temperature for more information, see the
Standard operating
temperature specifications
.
Thermal restrictions
Table 22. Thermal restrictions matrix for dual processors
Maximum continuous operating inlet temperature (°C)
3.5" Chassis
2.5" Chassis
No-BP
Chassi
s
TDP
Watts
Proc
No.
DPN
of
Max
DIMM
12x
HDDs
8x
HDDs
4x
HDDs
24x
HDDs
20x
HDDs
16x
HDDs
12x
HDDs
8x
HDDs
4x
HDDs
N/A
Technical specifications
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