Western Digital Caviar Green WD10EACS User manual

• IntelliPower™– A fine-tuned balance of spin speed, transfer
rate and caching algorithms designed to deliver both significant
power savings and solid performance. Additionally, WD Caviar
Green drives consume less current during startup allowing
lower peak loads on systems as they are booted.
• IntelliSeek™– Calculates optimum seek speeds to lower power
consumption, noise, and vibration.
• IntelliPark™– Delivers lower power consumption by
automatically unloading the heads during idle to reduce
aerodynamic drag.
Based on WD’s exclusive GreenPower™technology, these drives are
designed to deliver power savings as the primary attribute. As hard
drive capacities increase, the power required to run those drives
increases as well. 1 TB hard drives currently available have a typical
power consumption rating greater than 13.5 watts. WD Caviar Green
drives yield an average drive power savings of 4-5 watts over
competitors’ drives making it possible for our energy-conscious
customers to build systems with higher capacities and the right
balance of system performance, ensured reliability, and energy
conservation.
In desktop computers this power savings equates to reducing CO2
emission by up to 13.8 kilograms per drive per year — the equivalent
of taking a car off the road for 3 days each year*. By using
environmentally-conscious PCs with our WD Caviar Green drives on
board, large organizations with many desktop computers can minimize
their carbon footprint and save real money on electricity costs.
WD Caviar ®Green
Power-saving Hard Drives
Reduced Power Consumption
Environmentally Responsible
Cool and Quiet
Cooler. Quieter.
Eco-friendlier.
*Assumes that a car produces 1.60 CO2pounds per kWatt/hours/year. Calculation of automobile
emissions depends on the car’s g/km emission levels and km/year of driving.
Ideal for PCs, external storage,
and other devices requiring lower
power consumption and cool,
quiet operation.
WD Caviar Green
™

Key Specifications
Interface: SATA 3 Gb/s
Form Factor: 3.5-inch
Limited Warranty: 3-year
Capacities
500 GB, 750 GB, 1 TB
Models
WD5000AACS, WD7500AACS,
WD10EACS
Western Digital, WD, the WD logo, WD Caviar, and Put Your Life On It are registered trademarks in the U.S. and other countries; Black, Blue, Green, GreenPower,
IntelliPark, IntelliPower, and IntelliSeek are trademarks of Western Digital Technologies, Inc. Other marks may be mentioned herein that belong to other companies.
Product specifications subject to change without notice. Pictures shown may vary from actual products. © 2008 Western Digital Technologies, Inc. All rights reserved.
One gigabyte (GB) = one billion bytes. One terabyte (TB) = one trillion bytes. Total accessible capacity varies depending
on operating environment. 2178-701080-A04 June 2008
GreenPower Technology
Environmental sustainability is important to us at Western Digital.
One of the best ways we can make a positive impact on the
environment is to help our customers – PC and external drive
manufacturers – offer products that consume less electricity.
To that end, WD has designed an eco-friendly hard drives with
GreenPower technology for WD desktop, enterprise, CE and
external hard drive products.
Based on extensive customer input toward supporting
ENERGY STAR 4.0 compliance and incorporating the latest in
engineering technology, we developed this platform to bring more
energy efficient hard drive options to our customers.
Consuming less power lowers the electricity bill. By how much?
It depends on several factors: The system type (desktop computer,
server, external hard drive, or DVR); how many hours per year the
drives run; other factors such as air conditioning costs; and the cost
of a kilowatt hour.
Here’s a chart that takes into account these factors and estimates
the savings that can be achieved in each segment:
Segment Hour/Year Power
Multiplier
$/kWatt TCO$/year Kg of CO
2
Days of Driving
(Based on Avg.
Daily CO
2
Emissions)
Enterprise 8760 2.40
(1)
$0.12
(4
)
$10.09 60.5
(5)
14
(6)
CE 8760 1.25
(2)
1.54
(3)
$0.12
(4)
$5.26
$6.48
31.5
(5)
38.9
(5)
7
(6)
9
(6)
Externals NAS 8760 1.25
(2)
3.33
(X)
$0.12
(4)
$5.26
$14.00
31.5
(5)
84.0
(5)
7
(6)
19
(6)
Desktop 3120 1.25
(2)
1.54
(3)
$0.12
(4)
$1.87
$2.31
11.2
(5)
13.8
(5)
3
(6)
3
(6
)
Externals
USB/1394
3120
1.25
(2)
3.33
(7)
$0.12
(4)
$1.87
$4.99
11.2
(5)
29.9
(5)
3
(6)
7
(6)
For source information please visit:
www.wdc.com/en/company/greenpower.asp
WD Caviar Green Power-saving Hard Drives
WD Caviar Green
WD Caviar Green is part of WD's complete lineup of desktop hard drives.