System Configuration
The configuration used for the Energy Consumption and Declared Noise
Emissions data for the Micro tower Desktop model is based on a
typically configured product.
Energy
Consumption
115 VAC
230 VAC
100 VAC
Normal Operation
20.4 W
20.1 W
20.5 W
Sleep (Energy Star® low
power mode)
1.76 W
1.8 W
1.76 W
Off
0.32 W
0.35 W
0.31 W
Note
:
Energy efficiency data listed is for an ENERGY STAR® compliant product
if offered within the model family . HP computers marked with the
ENERGY STAR® Logo are compliant with the applicable U.S.
Environmental Protection Agency (EPA) ENERGY STAR® specifications for
computers. If a model family does not offer ENERGY STAR® compliant
configurations, then energy efficiency data listed is for a typically
configured model.
Heat Dissipation*
115 VAC
230 VAC
100 VAC
Normal Operation
70 BTU/Hr
69 BTU/Hr
70 BTU/Hr
Sleep
6 BTU/Hr
6 BTU/Hr
6 BTU/Hr
Off
1 BTU/Hr
1 BTU/Hr
1 BTU/Hr
* Heat dissipation is calculated based on the measured watts, assuming
the service level is attained for one hour.
Declared Noise Emissions
(in accordance with
ISO 7779 and ISO 9296)
Sound Power
(LWAd, bels
Sound Pressure
(LpAm, decibels)
(Typically configured)
Idle
3.5
27
Fixed Disk (random
writes)
3.6
37
Longevity
and Upgrading
This product can be upgraded, possibly extending its useful life by several
years. Upgradeable features and/or components contained in the product may
include:
Intel LGA775 processor socket
8 USB ports
1 empty PCI slot (w/ optional PCI riser card), or
1 empty PCIe x16 slot (w/optional PCIe riser card)
1 internal drive slot
1 Slimline optical drive slot
3 memory slots
QuickSpecs
HP Pro All-in-One 3520 Business PC
Technical Specifications
DA - 14525 Worldwide — Version 2 — March 8, 2013
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