Expanded operating temperature
Table 27. Expanded operating temperature specifications
Expanded operating temperature
Specifications
Continuous operation
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
above 950 m (1°F per 319 ft).
≤ 1% of annual operating hours
–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).
NOTE: When operating in the expanded temperature range, system performance 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.
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).
• 145 W and Workstation CPU (160 W) processors are not supported.
• Two power supply units (PSUs) are needed and one PSU failure is not supported.
• Non-Dell qualified peripheral cards and/or peripheral cards greater than 25 W are not supported.
• PCIe SSD and 1.8-inch SSDs are not supported.
• GPU is not supported.
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