Table 29. Common Environmental Specifications for ASHRAE A2, A3, A4 
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 (9°F in 15
minutes), 5°C in an hour* (9°F in an hour) for tape hardware
NOTE: * - Per ASHRAE thermal guidelines for tape hardware, these are
not instantaneous rates of temperature change.
Non-operational temperature limits -40 to 65°C ( -40 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 3,050 meters (10,006 feet)
Table 30. Maximum vibration specifications
Maximum vibration Specifications
Operating 0.21 G
rms
at 5 Hz to 500 Hz (all operation orientations)
Storage 1.88 G
rms
at 10 Hz to 500 Hz for 15 minutes (all six sides tested)
Table 31. 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 restriction matrix
Table 32. Processor and heat sink matrix
Heat sink Processor TDP
STD HSK ≤ 185 W
L-type HSK > 185 W
Table 33. Label reference
Label Description
STD Standard
HPR (Gold) High performance (gold grade)
HSK Heat sink
LP Low profile
FH Full height
DLC Direct Liquid Cooling
Technical specifications 37
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