Dell PowerEdge T340 EMC Installation and Service Manual - Page 115

Standard operating temperature, Expanded operating temperature restrictions

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Table 27. Operating temperature derating specifications Operating temperature derating 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). 35-40°C (95-104°F) Maximum temperature is reduced by 1°C/175 m (1°F/319 ft), above 950 m (3,117 ft). 40-45°C (104-113°F) Maximum temperature is reduced by 1°C/125 m (1°F/228 ft), above 950 m (3,117 ft). Standard operating temperature Table 28. Standard operating temperature specifications Standard operating temperature Specifications Continuous operation (for altitude less than 950 m or 3117 10-35°C (50-95°F) with no direct sunlight on the equipment. ft) Expanded operating temperature Table 29. Expanded operating temperature specifications Expanded operating temperature Specifications Continuous operation 5°C-40°C at 5% to 85% RH with 29°C dew point. NOTE: Outside the standard operating temperature (10°C-35°C), the system can operate continuously in temperatures as low as 5°C and as high as 40°C. For temperatures 35°C- 40°C, derate maximum allowable temperature by 1°C per 175 m (1°F per 319 ft) above 950 m (3,1171 ft). ≤ 1% of annual operating hours -5°C-45°C at 5% to 90% RH with 29°C dew point. NOTE: Outside the standard operating temperature (10°C-35°C), the system can operate down to -5°C or up to 45°C for a maximum of 1% of its annual operating hours. For temperatures 40°C- 45°C, derate maximum allowable temperature by 1°C per 125 m (1°F per 228 ft) above 950 m (3.117 ft). NOTE: When operating in the expanded temperature range, the performance of the system may be impacted. NOTE: When operating in the expanded temperature range, ambient temperature warnings may be reported on the System Event Log. Expanded operating temperature restrictions • Do not perform a cold startup of the system below 5°C. • The operating temperature specified is for a maximum altitude of 950 m for Fresh Air cooling. • Two redundant power supply units are required. • Cooling redundancy is not supported due to single fan only in system. • Support up to 80 W processor. • One system fan is required. • Non-Dell qualified peripheral cards and/or peripheral cards greater than 25 W are not supported. • GPU is not supported. Technical specifications 115

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Table 27. Operating temperature derating specifications
Operating temperature derating
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).
35–40°C (95–104°F)
Maximum temperature is reduced by 1°C/175 m (1°F/319 ft), above 950 m
(3,117 ft).
40–45°C (104–113°F)
Maximum temperature is reduced by 1°C/125 m (1°F/228 ft), above 950 m
(3,117 ft).
Standard operating temperature
Table 28. Standard operating temperature specifications
Standard operating temperature
Specifications
Continuous operation (for altitude less than 950 m or 3117
ft)
10–35°C (50–95°F) with no direct sunlight on the equipment.
Expanded operating temperature
Table 29. Expanded operating temperature specifications
Expanded operating temperature
Specifications
Continuous operation
5°C–40°C at 5% to 85% RH with 29°C dew point.
NOTE:
Outside the standard operating temperature
(10°C–35°C), the system can operate continuously in
temperatures as low as 5°C and as high as 40°C.
For temperatures 35°C– 40°C, derate maximum allowable
temperature by 1°C per 175 m (1°F per 319 ft) above 950 m
(3,1171 ft).
≤ 1% of annual operating hours
-5°C–45°C at 5% to 90% RH with 29°C dew point.
NOTE:
Outside the standard operating temperature
(10°C–35°C), the system can operate down to -5°C or
up to 45°C for a maximum of 1% of its annual operating
hours.
For temperatures 40°C– 45°C, derate maximum allowable
temperature by 1°C per 125 m (1°F per 228 ft) above 950 m (3.117
ft).
NOTE:
When operating in the expanded temperature range, the performance of the system may be impacted.
NOTE:
When operating in the expanded temperature range, ambient temperature warnings may be reported on the
System Event Log.
Expanded operating temperature restrictions
•
Do not perform a cold startup of the system below 5°C.
•
The operating temperature specified is for a maximum altitude of 950 m for Fresh Air cooling.
•
Two redundant power supply units are required.
•
Cooling redundancy is not supported due to single fan only in system.
•
Support up to 80 W processor.
•
One system fan is required.
•
Non-Dell qualified peripheral cards and/or peripheral cards greater than 25 W are not supported.
•
GPU is not supported.
Technical specifications
115