Unit Environment and Operating Conditions
General Unit Operating Guidelines
Keep the computer away from excessive moisture, direct moisture and the extremes of heat and cold, to ensure that unit is
operated within the specified operating range.
Leave a 10.2 cm (4 in) clearance on all vented sides of the computer to permit the required airflow.
Never restrict airflow into the computer by blocking any vents or air intakes.
Do not stack computers on top of each other or place computers so near each other that they are subject to each other's re-
circulated or preheated air.
Occasionally clean the air vents on the front, back, and any other vented side of the computer. Lint, dust and other foreign
matter can block the vents and limit the airflow.
If the computer is to be operated within a separate enclosure, intake and exhaust ventilation must be provided on the enclosure,
and the same operating guidelines listed above will still apply.
Temperature Range
Operating: 50° to 95° F (10° to 35° C)
*
Non-operating: –22° to 140° F(–30° to 60° C)
Relative Humidity
Operating: 10% to 90% (non-condensing at ambient)
Non-operating: 5% to 95% (non-condensing at ambient)
Maximum Altitude
(unpressurized)
Operating: 10,000 ft (3048 m)
Non-operating: 30,000 ft (9144 m)
*Operating temperature is de-rated 1.0 deg 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 deg C/Hr. The upper limit may be limited by the type and number of options installed.
Power Supply
SFF
MT
Standard Efficiency
240W active PFC
320W active PFC
High Efficiency
*
240W active PFC
87/90/87% efficient @ 20/50/100% load
320W active PFC
87/90/87% efficient @ 20/50/100% load
Operating Voltage Range
90 - 264 VAC
Rated Voltage Range
100 - 240 VAC
Rated Line Frequency
50/60 Hz
Operating Line Frequency
Range
47 – 63 Hz
Rated Input Current
4A
5.5A
Rated Input Current with
Energy Efficient
*
Power
Supply
4A
5.5A
Current Leakage
(NFPA 99)
< 275 µA
< 450 µA
Power Supply Fan
92mm variable speed
Power cord length
6.0 ft. (1.83 m)
Total Cord Length
N/A
N/A
*High efficiency power supply is a requirement for ENERGY STAR qualification in conjunction with a select range of processors and
modules
QuickSpecs
HP Compaq Pro 6305 Business PC
Technical Specifications – Power
DA - 14425 North America — Version 21 — December 2, 2013
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