Dell PowerEdge R540 EMC Technical Specifications - Page 11
Expanded operating temperature restrictions, Thermal restriction matrix
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Table 15. Expanded operating temperature specifications (continued) Expanded operating temperature 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). ≤ 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 40°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 bezel's 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). • Redundant power supply configuration is required. • AEP DIMM is not supported. • GPGPU card is not supported. • Rear drive configuration is not supported. • 12 x 3.5 inch SM configuration with CPU 140 W/130 W/115 W/105 W_4C is not supported. • LRDIMM is not supported. • Non-Dell qualified peripheral cards and/or peripheral cards greater than 25 W are not supported. • Tape backup unit (TBU) is not supported. Thermal restriction matrix Table 16. Thermal restriction matrix for R540 Storage configuration Front Rear Fan type 8 drive NA Standard fan 12 drive NA Standard fan CPU heat sink type Processor number TDP (W) Intel Xenon Gold 125 6230 Intel Xenon Gold 125 6226 Intel Xenon Gold 115 6222V Intel Xenon Gold 125 6209U Intel Xenon Gold 125 6138 Core count 20 12 20 20 20 1.5U heat sink Ambient = 35°C Yes 1.5U heat sink Ambient = 35°C Yes Ambient = 30°C Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes 12 drive 2 drive Highperformance fan 1U heat sink Ambient = 30°C Yes Yes Yes Yes Yes Technical specifications 11