Regulatory Compliance And Environmental; Acoustic Noise Emission Information - Dell OptiPlex 740 Specifications

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/regulatory_compliance.
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 740 MT: Declared Noise Emissions in accordance with ISO 9296 (tested in accordance with ISO 7779)
Sound Power (LWAd, bels)
Service Level
(1 bel=10 decibels, re 10-12
Hard Drive Accessing
CD Drive Accessing
Idle
OptiPlex™ 740 DT: Declared Noise Emissions in accordance with ISO 9296 (tested in accordance with ISO 7779)
Sound Power (LWAd, bels)
Service Level
(1 bel=10 decibels, re 10-12
Floppy Drive Accessing
Hard Drive Accessing
CD Drive Accessing
Idle
OptiPlex® 740 SFF: Declared Noise Emissions in accordance with ISO 9296 (tested in accordance with ISO 7779)
Sound Power (LWAd, bels)
Service Level
(1 bel=10 decibels, re 10-12
Floppy Drive Accessing
Hard Drive Accessing
CD Drive Accessing
Idle
The Declared A-weighted Sound Pressure Level in decibels (re 2x10-5 Pa), at Operator, Bystander, and Desk Side Positions are measured in accordance with ISO 7779 7.6.1, 7.6.2, and C.15.2 and declared in
1.
accordance with ISO 9296;
19
Sound Pressure Operator
Position (LpAm, decibels) (re
Watts) 2x10-5 Pa)
3.7 28
5.1 42
3.6 28
Sound Pressure Operator
Position (LpAm, decibels) (re
Watts) 2x10-5 Pa)
4.9 40
3.8 28
5.5 45
3.9 28
Sound Pressure Operator
Position (LpAm, decibels) (re
Watts) 2x10-5 Pa)
4.8 37
4.0 31
4.8 31
3.9 30
Sound Pressure Bystander
Position (LpAm, decibels) (re
2x10-5 Pa)
24
37
23
Sound Pressure Bystander
Position (LpAm, decibels) (re
2x10-5 Pa)
39
23
38
23
Sound Pressure Bystander
Position (LpAm, decibels) (re
2x10-5 Pa)
32
27
26
25