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DELL™ OPTIPLEX™ 755 TECHNICAL GUIDE
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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: http://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 effective 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.
acoustic noisE EMission inforMation
OPTIPLEX 755 MT
COMPONENT TYPICAL CONFIGURATION HIGH-END CONFIGURATION
CPU E4500 E6850
Memory 1GB DDRII 667MHz 2GB DDRII 800MHz
HDD (#, capacity) 80GB 7200 RPM SATA 2 x 160GB 7200 RPM SATA
RMSD DVD/CD-RW Combo DVD/DVD+/-R
Graphics Adapter Integrated Adapter ATI 2400 Pro
The Declared Noise Emission in accordance with ISO 9296 for the Dell Optiplex 755 MT is as follows
1
: (all values L
WAd
expressed in
bels
2
; 1 bel=10 decibels, re 10
-12
Watts).
OPTIPLEX 755 MT
OPERATING MODE
TYPICAL CONFIGURATION
DECLARED SOUND POWER (L
WAd
)
HIGH-END CONFIGURATION
DECLARED SOUND POWER (L
WAd
)
Idle 3.7 3.8
HDD Operating 3.8 3.8
ODD Operating 5.0 5.0
90% CPU 3.7 4.1
1
All tests are conducted according to ISO 7779 and declared according to ISO 9296 except 90% CPU. For this mode, the system CPU was stressed at 90% utilization with no other
peripheral device actively seeking. This test mode is not specied in ISO 7779, but was measured using the same microphone distances and measurement techniques dened
for the other reported operating modes.
2
Declared Sound Power rounded to nearest tenth of a bel per ISO 9296 section 4.4.2
