Service Manual

Expanded operating temperature
Table 77. 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 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 System
Event Log.
Expanded operating temperature restrictions
Thermal Restriction for ASHRAE A4 Environment (UI)
● CPU TDP equal or greater than 155 W are not supported within A4.
● 128GB or greater capacity LRDIMMs are not supported within A4.
● Redundant power supply configuration is required.
● Non-Dell qualified peripheral cards greater than Tier 5 are not supported.
● GPU card is not supported within A4.
● OCP is not supported within A4.
● H730/H740 Mini-PERC is not supported with A4.
● PCIe SSD is not supported within A4.
Thermal Restriction for ASHRAE A3 Environment (UI)
● CPU TDP equal or greater than 180 W are not supported within A3.
● 128GB or greater capacity LRDIMMs are not supported within A3.
● Redundant power supply configuration is required.
● Non-Dell qualified peripheral cards greater than 25 W are not supported.
● GPU card is not supported within A3.
● OCP is not supported within A3.
● PCIe SSD is not supported within A3.
Particulate and gaseous contamination specifications
The following table defines the limitations that help avoid any damages to the IT equipment and/or, or both failure from
particulate and gaseous contamination. If the levels of particulate or gaseous pollution exceed the specified limitations and
results in equipment damage or failure, you must rectify the environmental conditions. Remediation of environmental conditions
is the responsibility of the customer.
136
Technical specifications