HP ProBook 4520s Quickspecs page 34

QuickSpecs
Technical Specifications
HP ProBook 4720s Notebook PC
Eco-Label Certifications
System Configuration
Energy Consumption
Normal Operation
Sleep (Energy Star low
power mode)
Off
Heat Dissipation*
Normal Operation
Sleep
Off
Declared Noise Emissions
(in accordance with
ISO 7779 and ISO 9296)
System Fan Off
Idle
Fixed Disk
(random writes)
DA - 13569 North America — Version 17 — September 29, 2011
HP follows these guidelines to decrease the environmental impact of product
packaging:
Eliminate the use of heavy metals such as lead, chromium, mercury and
cadmium in packaging materials.
Eliminate the use of ozone-depleting substances (ODS) in packaging
materials.
Design packaging materials for ease of disassembly.
Maximize the use of post-consumer recycled content materials in
packaging materials.
Use readily recyclable packaging materials such as paper and
corrugated materials.
Reduce size and weight of packages to improve transportation fuel
efficiency.
Plastic packaging materials are marked according to ISO 11469 and DIN
6120 standards.
This product has received or is in the process of being certified to the
following approvals and may be labeled with one or more of these marks:
US Energy Star
IT ECO declaration
EPEAT - Gold
The configuration used for the Energy Consumption and Declared Noise
Emissions data for the Convertible Mini tower Desktop model is based on a
"Typically Configured Notebook"
115 VAC
11.8 W
0.98 W
0.61 W
115 VAC
40 BTU/hr
3 BTU/hr
2 BTU/hr
* Heat dissipation is calculated based on the measured watts, assuming the
service level is attained for one hour.
Sound Power
(LWAd, bels)
2.8
2.8
HP ProBook 4520s Notebook PC
HP ProBook 4720s Notebook PC
230 VAC
11.85 W
1.08 W
0.68 W
230 VAC
41 BTU/hr 40 BTU/hr
4 BTU/hr
2 BTU/hr
Sound Pressure
(LpAm, decibels)
24.2
25.8
100 VAC
11.80 W
0.98 W
0.59 W
100 VAC
3 BTU/hr
2 BTU/hr
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