Dell PowerEdge FX2 Owner's Manual page 96

Expanded Specifications
operating
temperature
For temperatures between 40°C and 45°C, de-rate maximum allowable dry bulb
temperature by 1°C per 125 m above 950 m (1°F per 228 ft).
Expanded
•
operating
•
temperature
restrictions
•
•
96
NOTE: Outside the standard operating temperature (10°C to 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.
Do not perform a cold startup below 5°C.
The operating temperature specified is for a maximum altitude of 3050 m
(10,000 ft).
Two redundant power supplies are required.
Non Dell qualified peripheral cards and/or peripheral cards greater than 25 W
are not supported.
NOTE: For more information on the sled-specific restrictions for the expanded
operating temperature range, see the technical specifications in the sled
Owner's Manual at Dell.com/poweredgemanuals.