Dell EMC PowerEdge R840, Технические характеристики

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Expanded operating temperature Specifications
For temperatures 35 °C – 40°C, derate maximum allowable
temperature by 1°C per 175 m (1°F per 319 ft.) above 950 m (3,1171
ft.).
≤ 1% of annual operating hours –5 °C–45°C at 5% to 90% RH with 29°C dew point.
NOTE: Outside the standard operating temperature
(10 °C–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 40 °C – 45°C, derate maximum allowable
temperature by 1°C per 125 m (1°F per 228 ft.) above 950 m (3.117
ft.).
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.
Expanded operating temperature restrictions
• The operating temperature is specified for a maximum altitude of 950 m for Fresh Air Cooling.
• Do not perform cold start below 5°C due to hard drive constraints.
• Apache Pass DIMM, NVDIMM, PCIe SSD, and NVMe are not supported.
• Tape Backup Unit (TBU) is not supported in Fresh Air.
• LRDIMM >32 GB is not supported in x4 sockets configuration.
• Rear installed drives and GPU configuration are not supported.
• Redundant power supplies are required.
• Non Dell qualified peripheral cards and /or peripheral cards greater than 25 W are not supported.
• Intel FPGA is not supported.
• 205 W SKUs, 200W/18C, 165W/12C, and 150W_8C processor are not supported on all x4 socket processor configurations.
• 165 W SKUs, 130W/8C, 115W/6C, and 105W_4C are not supported on the x4 socket processor configurations except front x8 inch
SAS/SATA drives configurations.
Ambient temperature limitations
NOTE: The ambient temperature limit must be adhered to ensure proper cooling and to avoid excess processor throttling, which
may impact system performance.
Technical specifications 27