Owners Manual

Table 15. Expanded operating temperature
Expanded Operating Temperature
NOTE: When operating in the expanded temperature range, system performance may be impacted.
NOTE: When operating in the expanded temperature range, ambient temperature warnings may be reported on the LCD
and in the System Event Log.
< 10% of annual operating hours 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 down
to 5°C or as high as 40°C.
For temperatures between 35°C- 40°C, derate maximum
allowable temperature by 1°C per 175 m above 950 m (1°F
per 319 ft).
< 1% of annual operating hours –5 °C–45°C at 5% to 90% RH with 29°C (84.2°F)
maximum 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 between 40 °C–45 °C, derate maximum
allowable dry bulb temperature by 1°C per 125 m above 950
m (1°F per 228 ft).
Expanded Operating Temperature Restrictions
● Do not perform a cold startup below 5°C.
● The operating temperature specified is for a maximum
altitude of 30482000 m (10,0006560 ft).
● PCIe SSD and 1.8-inch SSDs are not supported.
● GPU is not supported.
● 145 W and Workstation CPU (160 W) processors are not
supported.
● Two PSUs are required and one PSU failure is not
supported.
● Non-Dell qualified peripheral cards and/or peripheral cards
greater than 25 W are not supported.
Table 16. Environmental specification
Environmental
NOTE: For additional information about environmental measurements for specific system configurations, see Dell.com/
environmental_datasheets.
Temperature
Maximum temperature gradient (operating and storage) 20°C/h (36°F/h)
Storage temperature limits –40°C–65°C (–40°F–149°F)
Relative humidity
Storage 5% to 95% RH with 33°C (91 °F) maximum dew point.
Atmosphere must be non-condensing always.
Temperature (continuous operation)
Temperature ranges (for altitude less than 950 m or 3117 ft) 10 °C–35°C (50 °F–95°F) with no direct sunlight on the
equipment.
Humidity percentage range 10% to 80% Relative Humidity with 26°C (78.8°F)
maximum dew point.
Technical specifications 21