HP E1Z77UT E1Z77UT#ABA, E1Z74UT E1Z74UT#ABA TWR specifications, Appendix D Specifications

DSpecifications

TWR specifications

Chassis
Height	15.7 in	39.9 cm
Width	6.7 in	17.0 cm
Depth	17.4 in	44.2 cm
Approximate Weight	20.5 lb	9.3 kg
Temperature Range
Operating	50° to 95°F	10° to 35°C
Nonoperating	-22° to 140°F	-30° to 60°C

NOTE: Operating temperature is derated 1.0° C per 300 m (1000 ft) to 3000 m (10,000 ft) above sea level; no direct sustained sunlight. Maximum rate of change is 10° C/Hr. The upper limit may be limited by the type and number of options installed.

Relative Humidity (noncondensing)
Operating		10-90%	10-90%
Nonoperating (38.7°C max wet bulb)		5-95%	5-95%
Maximum Altitude (unpressurized)
Operating		10,000 ft	3048 m
Nonoperating		30,000 ft	9144 m
Power Supply
Operating Voltage Range		90-264 VAC
Rated Voltage Range	1	100-240 VAC
Rated Line Frequency		50-60 Hz
Operating Line Frequency		47-63 Hz
Standard Efficiency		320W STD active PFC / 320W STD HV active PFC
High Efficiency		320W 92% efficient active PFC / 320W 90%
		efficient active PFC

228 Appendix D Specifications