Dell OptiPlex 755 User's Guide - Page 179
continued, V at 50/60 Hz
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Power (continued) Heat dissipation Voltage Backup battery Physical Height Width Depth Weight Environmental Temperature: Operating Storage Relative humidity Maximum vibration: Operating Storage Maximum shock: Operating Storage Altitude: Operating Storage Airborne contaminant level 938 BTU/hr NOTE: Heat dissipation is calculated based upon the power supply rating. manual selection power supplies - 90 to 135 V at 50/60 Hz; 180 to 265 V at 50/60 Hz 3-V CR2032 lithium coin cell 9.26 cm (3.65 inches) 31.37 cm (12.35 inches) 34.03 cm (13.40 inches) 7.4 kg (16.4 lb) 10° to 35°C (50° to 95°F) -40° to 65°C (-40° to 149°F) 20% to 80% (noncondensing) 0.25 G at 3 to 200 Hz at 0.5 octave/min 0.5 G at 3 to 200 Hz at 1 octave/min bottom half-sine pulse with a change in velocity of 20 inches/sec (50.8 cm/sec) 27-G faired square wave with a velocity change of 200 inches/sec (508 cm/sec) -15.2 to 3048 m (-50 to 10,000 ft) -15.2 to 10,668 m (-50 to 35,000 ft) G2 or lower as defined by ISA-S71.04-1985 Small Form Factor Computer Specifications 179