Service Manual

Table 67. Operational climatic range category A3 (continued)
Allowable continuous operations
Humidity percent ranges (Noncondensing at all times) 8% RH with -12°C minimum dew point to 85% RH with 24°C
(75.2°F) maximum dew point
Operational altitude de-rating Maximum temperature is reduced by 1°C/175 meters
(1.8°F/574 feet) above 900 meters (2,953 feet)
Operational climatic range category A4
Table 68. Operational climatic range category A4
Allowable continuous operations
Temperature ranges for altitude < 900 meters (<2953 feet) 5 to 45°C (41 to 113°F) with no direct sunlight on the
platform
Humidity percent ranges (Non-condensing at all times) 8% RH with -12°C minimum dew point to 90% RH with 24°C
(75.2°F) maximum dew point
Operational altitude derating Maximum temperature is reduced by 1°C/125 meters
(1.8°F/410 feet) above 900 meters (2,953 feet)
Thermal restriction for ASHRAE A4 environment (UI)
● CPU TDP equal or greater than 155 W are not supported.
● 128 GB or greater capacity LRDIMMs are not supported.
● Redundant power supply configuration is required.
● Non-Dell qualified peripheral cards greater than Tier 5 are not supported.
● GPU card is not supported.
● OCP is not supported.
● H730/H740 Mini-PERC is not supported.
● PCIe SSD is not supported.
Shared requirements across all categories
Table 69. Shared requirements across all categories
Allowable operations
Maximum temperature gradient (applies to both operation and
nonoperation)
20°C in an hour* (36°F in an hour) and 5°C in 15 minutes
(9°F in 15 minutes), 5°C in an hour* (9°F in an hour) for tape
hardware
Nonoperational temperature limits -40°C-65°C (-40°F-149°F)
Nonoperational humidity limits 5% to 95% RH with 27°C (80.6°F) maximum dew point
Maximum nonoperational altitude 12,000 meters (39,370 feet)
Maximum operational altitude 3,048 meters (10,000 feet)
*: Per ASHRAE thermal guidelines, these are not instantaneous rates of temperature change.
Table 70. Temperature specifications
Temperature Specifications
Storage -40–65°C (-40–149°F)
Continuous operation (for altitude less than 950
m or 3117 ft)
10–35°C (50–95°F) with no direct sunlight on the equipment
134 Technical specifications