Expanded Operating Temperature Restrictions - Dell E31S Series Owner's Manual

Expanded operating temperature
≤ 1% of annual operating hours
NOTE: When operating in the expanded temperature range, system performance may be impacted.
NOTE: When operating in the expanded temperature range, ambient temperature warnings maybe reported on the LCD
panel and in the System Event Log.

Expanded operating temperature restrictions

• Do not perform a cold startup below 5°C.
• The operating temperature specified is for a maximum altitude of 3050 m (10,000 ft).
• 160 W or higher wattage processor is not supported.
• Redundant power supply units are required.
• Non-Dell qualified peripheral cards and/or peripheral cards greater than 25 W are not supported.
• The 3.5-inch hard drive chassis supports a maximum of 120 W processor.
• The 2.5-inch hard drive chassis supports a maximum of 145 W processor.
• Only SSDs are allowed in the hard drive slots at the back of the 3.5-inch hard drive chassis.
• Mid drive configurations, eight 3.5-inch and eighteen 1.8-inch SSD configurations are not supported.
• GPU is not supported
• Tape backup unit (TBU) is not supported.
Specifications
For temperatures between 35°C and 40°C, de-rate maximum allowable
temperature by 1°C per 175 m above 950 m (1°F per 319 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 above 950 m (1°F per 228 ft).
Technical specifications 23