Dell PowerEdge FC830 Owner's Manual page 15

Table 17. Expanded operating temperature specifications
Expanded operating temperature
Continuous operation
≤ 1% of annual operating hours
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 LCD
panel and in the System Event Log.
Specifications
5°C to 40°C at 5% to 85% RH with 29°C dew point.
NOTE: Outside the standard operating temperature
(10°C to 35°C), the system can operate continuously in
temperatures as low as 5°C and as high as 40°C.
For temperatures between 35°C and 40°C, de-rate maximum
allowable temperature by 1°C per 175 m (1°F per 319 ft.)
above 950 m (3,1171 ft.).
–5°C to 45°C at 5% to 90% RH with 29°C dew point.
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.
For temperatures between 40°C and 45°C, de-rate maximum
allowable temperature by 1°C per 125 m (1°F per 228 ft.)
above 950 m (3.117 ft.).
Technical specifications 15