Dell PowerEdge R7525 EMC Installation and Service Manual - Page 187

Thermal air restrictions, Fresh air environment, ASHRAE A3 environment

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Table 76. Operational climatic range category A4 (continued) Temperature Specifications Operational altitude de-rating Maximum temperature is reduced by 1°C/125 m (33.8°F/410 Ft) above 900 m (2953 Ft) Table 77. Shared requirements across all categories Temperature Specifications Allowable continuous operations Maximum temperature gradient (applies to both operation and non-operation) 20°C in an hour* (36°F in an hour) and 5°C in 15 minutes (41°F in 15 minutes), 5°C in an hour* (41°F in an hour) for tape NOTE: * - Per ASHRAE thermal guidelines for tape hardware, these are not instantaneous rates of temperature change. Non-operational temperature limits Non-operational humidity limits Maximum non-operational altitude Maximum operational altitude -40 to 65°C (-104 to 149°F) 5% to 95% RH with 27°C (80.6°F) maximum dew point 12,000 meters (39,370 feet) 3,048 meters (10,000 feet) Table 78. Maximum vibration specifications Maximum vibration Specifications Operating Storage 0.26 Grms at 5 Hz to 350 Hz (all operation orientations) 1.88 Grms at 10 Hz to 500 Hz for 15 minutes (all six sides tested) Table 79. Maximum shock pulse specifications Maximum shock pulse Specifications Operating Six consecutively executed shock pulses in the positive and negative x, y, and z axis of 6 G for up to 11 ms. Storage Six consecutively executed shock pulses in the positive and negative x, y, and z axis (one pulse on each side of the system) of 71 G for up to 2 ms. Thermal air restrictions Fresh air environment • Two PSUs are required in redundant mode, however single PSU failure is not supported. • PCIeSSD is not supported. • 128 GB or greater capacity DIMMs are not supported. • GPU and FPGA are not supported. • CPU TDP equal or greater than 180 W are not supported. • Rear drives are not supported. • Non Dell qualified peripheral cards and/or peripheral cards greater than 25 W are not supported. ASHRAE A3 environment • Two PSUs are required in redundant mode, however PSU failure is not supported. • PCIeSSD is not supported. • 128 GB or greater capacity DIMMs are not supported. • GPU and FPGA are not supported. • CPU TDP equal or greater than 180 W are not supported. • Rear drives are not supported. • Non Dell qualified peripheral cards and/or peripheral cards greater than 25 W are not supported. Technical specifications 187

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Table 76. Operational climatic range category A4 (continued)
Temperature
Specifications
Operational altitude de-rating
Maximum temperature is reduced by 1°C/125 m (33.8°F/410 Ft) above 900 m
(2953 Ft)
Table 77. Shared requirements across all categories
Temperature
Specifications
Allowable continuous operations
Maximum temperature gradient (applies to both
operation and non-operation)
20°C in an hour* (36°F in an hour) and 5°C in 15 minutes (41°F in 15 minutes),
5°C in an hour* (41°F in an hour) for tape
NOTE:
* - Per ASHRAE thermal guidelines for tape hardware, these
are not instantaneous rates of temperature change.
Non-operational temperature limits
-40 to 65°C (-104 to 149°F)
Non-operational humidity limits
5% to 95% RH with 27°C (80.6°F) maximum dew point
Maximum non-operational altitude
12,000 meters (39,370 feet)
Maximum operational altitude
3,048 meters (10,000 feet)
Table 78. Maximum vibration specifications
Maximum vibration
Specifications
Operating
0.26 G
rms
at 5 Hz to 350 Hz (all operation orientations)
Storage
1.88 G
rms
at 10 Hz to 500 Hz for 15 minutes (all six sides tested)
Table 79. Maximum shock pulse specifications
Maximum shock pulse
Specifications
Operating
Six consecutively executed shock pulses in the positive and negative x, y, and z
axis of 6 G for up to 11 ms.
Storage
Six consecutively executed shock pulses in the positive and negative x, y, and z
axis (one pulse on each side of the system) of 71 G for up to 2 ms.
Thermal air restrictions
Fresh air environment
•
Two PSUs are required in redundant mode, however single PSU failure is not supported.
•
PCIeSSD is not supported.
•
128 GB or greater capacity DIMMs are not supported.
•
GPU and FPGA are not supported.
•
CPU TDP equal or greater than 180 W are not supported.
•
Rear drives are not supported.
•
Non Dell qualified peripheral cards and/or peripheral cards greater than 25 W are not supported.
ASHRAE A3 environment
•
Two PSUs are required in redundant mode, however PSU failure is not supported.
•
PCIeSSD is not supported.
•
128 GB or greater capacity DIMMs are not supported.
•
GPU and FPGA are not supported.
•
CPU TDP equal or greater than 180 W are not supported.
•
Rear drives are not supported.
•
Non Dell qualified peripheral cards and/or peripheral cards greater than 25 W are not supported.
Technical specifications
187