Dell EMC PowerEdge R640 - Thermal Restrictions

Expanded operating temperature
Table 37. Expanded operating temperature specifications
Expanded operating temperature Specifications
Continuous operation 5°C–40°C at 5% to 85% RH with 29°C dew point.
NOTE: Outside the standard operating temperature (10°C–
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–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–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 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).
• 150 W/8 C, 165 W/12 C and higher wattage processor(TDP>165 W) are not supported.
• Redundant power supply unit is required.
• Non-Dell qualified peripheral cards and/or peripheral cards greater than 25 W are not supported.
• NVDIMM-Ns are not supported.
• DCPMMs are not supported.
• GPU is not supported.
• PCIe SSD is not supported.
• Rear installed drives are not supported
• Tape backup unit is not supported.
Thermal restrictions
The following table lists the configurations required for efficient cooling.
Table 38. Thermal restrictions configuration
Configuration
Number
of
process
ors
Heatsink
Processor/
DIMM blank
DIMM
blanks
Maximum number of
DIMM blanks
Fan
PowerEdge
R640 (2.5 inch
hard drives x
10)
1
One 1U standard heat
sink for CPU ≤ 165 W
Not required
Required for
processor 1
11 blanks
Five standard fans
One 1U 2-pipe heat
sink for CPU=200/205
W and 150 W/165 W
FO*
Required
Eight high performance
fans
2
Two 1U standard heat
sink for CPU ≤ 165 W
Not required
Eight standard fans
Two 1U 2-pipe heat
sink for CPU=200/205
Required 22 blanks
Eight high performance
fans
52 Technical specifications