Quickspecs – HP QUICKSPECS DC7900 User Manual
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Energy Consumption
115 VAC
230 VAC
100 VAC
Normal Operation
56.815 W
56.054 W
57.984 W
Sleep (Energy Star low
power mode)
2.319 W
2.626 W
2.296 W
Off
1.097 W
1.31 W
1.075 W
Heat Dissipation
*
115 VAC
230 VAC
100 VAC
Normal Operation
194 BTU/hr
192 BTU/hr
198 BTU/hr
Sleep
8 BTU/hr
9 BTU/hr
7 BTU/hr
Off
4 BTU/hr
5 BTU/hr
4 BTU/hr
* Heat dissipation is calculated based on the measured watts, assuming the service level is
attained for one hour.
This product is in compliance with US executive order 13221, WOL (wake on LAN) disabled.
Declared Noise
Emissions
(in accordance with
ISO 7779 and ISO 9296)
System Fan Off
Sound Power
(LWAd, bels)
Sound Pressure
(LpAm, decibels)
Idle
3.7
22
Fixed Disk
(random writes)
3.8
22
Configuration with optional 10,000 rpm HDD
System Fan Off
Sound Power
(LWAd, bels)
Sound Pressure
(LpAm, decibels)
Idle
3.9
21
Fixed Disk
(random writes)
4.4
25
Batteries
This product complies with ISO standards:
EU Directive 91/ 157/ EEC
EU Directive 93/ 86/ EEC
EU Directive 98/ 101/ EEC
Batteries used in the product do not contain:
Mercury greater the 5ppm by weight
Cadmium greater than 10ppm by weight
Lead greater than 4000ppm by weight.
Battery size: CR2032 (coin cell)
Battery type: Lithium
Additional Information
This product is in compliance with the Restrictions of Hazardous Substances (RoHS)
directive – 2002/95/EC.
This product is in compliance with California Proposition 65 (State of California; Safe
Drinking Water and Toxic Enforcement Act of 1986).
This product is in compliance with the IEEE 1680 (EPEAT) standard at the Gold level
1
, see
This HP product is designed to comply with the Waste Electrical and Electronic Equipment
(WEEE) Directive – 2002/96/EC.
Plastics parts weighing over 25 grams used in the product are marked per ISO 11469 and
ISO1043.
This product contains 0% recycled materials (by wt.)
This product is 96.6% recyclable when properly disposed of at end of life.
QuickSpecs
HP Compaq dc7900 Business PC
Technical Specifications - Environmental Data
DA - 13029 Worldwide QuickSpecs — Version 24 — 10/30/2009
Page 61