Dell PowerEdge C6145 - Manual (Page 16)

Getting Started With Your System | 16
Environmental
Altitude
Operating –16 to 3,048 m (–50 to 10,000 ft)
NOTE: For altitudes above 2950 feet, the maximum
operating temperature is derated 1°F/550 ft.
Storage –16 to 10,600 m (–50 to 35,000 ft)
Airborne contaminant level
Class G2 or lower as defined by
ISA-S71.04-1985