Dell 755 manual 179, Power Heat dissipation

Power (continued)

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

Small Form Factor Computer Specifications

179