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Table 16 Operating temperature derating specification (continued)
Operating temperature derating
40–45 °C (104 °F–113 °F)
Standard operating temperature
The standard operating temperature for altitude less than 950 m or 3117 ft ranges 10 °C–35°C with no direct sunlight
on the equipment.
Note:
The 2.5-inch hard drive chassis supports a maximum of 145 W processors.
Table 17 Standard operating temperature specifications
Standard operating temperature
Continuous operation (for altitude less than 950 m or
3117 ft)
Expanded operating temperature
When the system is in continuous operation, the expanded operating temperature ranges 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 35 °C – 40°C, derate maximum
allowable temperature by 1°C per 175 m above 950 m (1°F per 319 ft). When the system is operating at < 1% of annual
operating hours, the expanded operating temperature is –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 above 950 m (1°F per 228 ft).
Table 18 Expanded operating temperature specifications
Expanded operating temperature
Continuous operation
≤ 1% of annual operating hours
Note:
When operating in the expanded temperature range, the performance of the system may be impacted.
Specifications
Maximum temperature is reduced by 1°C/125 m (1°F/228 ft), above 950 m
(3,117 ft).
Specifications
10 °C–35°C (50 °F–95°F) with no direct sunlight on the equipment.
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 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.).
–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.).
Technical specifications
R840xd Owner's Guide
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