VERSION 1.0 39
DELL™ OPTIPLEX™ 740 TECHNICAL GUIDE
39
rEguLatory coMpLiancE anD EnvironMEntaL
Product-related conformity assessment and regulatory authorizations including Product Safety, Electromagnetic
Compatibility (EMC), Ergonomics, and Communication Devices relevant to this product may be viewed at www.dell.com/
regulatory_compliance. The Regulatory Datasheet for this product is located at: www.dell.com/content/topics/global.
aspx/corp/environment/en/prod_datasheets
Details of Dell's environmental stewardship program to conserve product energy consumption, reduce or eliminate
materials for disposal, prolong product life-span and provide eective and convenient equipment recovery solutions
may be viewed at www.dell.com/environment. Product-related conformity assessment, regulatory authorizations,
and information encompassing Environmental, Energy Consumption, Noise Emissions, Product Materials Information,
Packaging, Batteries, and Recycling relevant to this product may be viewed by clicking the Design for Environment
link on the webpage.
OPTIPLEX™ 740 MT: Declared noise emissions in accordance with ISO 9296 (tested in accordance with ISO 7779
15
)
SERVICE LEVEL
Sound Power
(LWad, bels) (1 bel=10
decibels, re 10
-12
Watts)
Sound Pressure Operator
Position (LpAM, decibels)
(re 2x10
-5
Pa)
Sound Pressure Bystander
Position (LpAM, decibels)
(re 2x10
-5
PA)
Hard Drive Accessing
3.7 28 24
CD Drive Accessing
5.1 42 37
Idle
3.6 28 23
acoustic noisE EMission inforMation
OPTIPLEX™ 740 DT: Declared noise emissions in accordance with ISO 9296 (tested in accordance with ISO 7779
15
)
SERVICE LEVEL
Sound Power
(LWad, bels) (1 bel=10
decibels, re 10
-12
Watts)
Sound Pressure Operator
Position (LpAM, decibels)
(re 2x10
-5
Pa)
Sound Pressure Bystander
Position (LpAM, decibels)
(re 2x10
-5
PA)
Floppy Drive
Accessing
4.9 40 34
Hard Drive Accessing
3.8 28 23
CD Drive Accessing
5.5 45 38
Idle
3.9 28 23
OPTIPLEX™ 740 SFF: Declared noise emissions in accordance with ISO 9296 (tested in accordance with ISO 7779
15
)
SERVICE LEVEL
Sound Power
(LWad, bels) (1 bel=10
decibels, re 10
-12
Watts)
Sound Pressure Operator
Position (LpAM, decibels)
(re 2x10
-5
Pa)
Sound Pressure Bystander
Position (LpAM, decibels)
(re 2x10
-5
PA)
Floppy Drive
Accessing
4.8 37 32
Hard Drive Accessing
4.0 31 27
CD Drive Accessing
4.8 31 26
Idle
3.9 30 25
15
The Declared Noise Emission in accordance with ISO 9296 for the Dell OptiPlex 740 is as follows
1
: (all values Lw a d expressed in bels
2
; 1 bel=10 decibels, re 10
-12
Watts).
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