Owners Manual

123
Expanded Operating Temperature
< 1 percent of annual operating hours –5°C to 45°C at 5 to 90 percent RH with 26°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 percent of its annual operating
hours.
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 • Processors of 55 W and 65 W are not supported.
• Do not perform a cold startup at less than 5°C.
• Allow processor performance degrade.
• Non-redundant PSUs are not supported.
• Non-Dell qualified peripheral cards and/or
peripheral cards are not supported.
• Maximum altitude for the operating temperature
must be 3050 m (10,000 ft).