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Expanded operating temperature
Table 37. Expanded operating temperature specifications
Expanded operating temperature
Continuous operation
≤ 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 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
Number
of
Configuration
process
ors
1
PowerEdge
R640 (2.5 inch
hard drives x
10)
2
52
Technical specifications
Processor/
Heatsink
DIMM blank
One 1U standard heat
Not required
sink for CPU ≤ 165 W
One 1U 2-pipe heat
sink for CPU=200/205
W and 150 W/165 W
FO*
Two 1U standard heat
sink for CPU ≤ 165 W
Not required
Two 1U 2-pipe heat
sink for CPU=200/205
Specifications
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).
–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).
DIMM
blanks
Required for
Required
processor 1
Required
Maximum number of
DIMM blanks
Eight high performance
11 blanks
Eight high performance
22 blanks
Fan
Five standard fans
fans
Eight standard fans
fans
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