Dell OptiPlex 7020 - Acoustic Noise Emission Information; Optiplex 7020 MT; Declared Sound Power (Lwad); A-Weighted Sound Pressure Level (Db)

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Acoustic Noise Emission Information
OptiPlex 7020 MT
Component
Test Configuration
CPU
Intel Haswell 4c 86W 2.60Ghz
Memory
8G DDR3 1600MHz*4
HDD (#, capacity)
1T 7200RPM SATA3,3.5” *2
RMSD
DVD, 16X, SATA, HH *2
Graphics Adapter
AMD OUGA10*2
Declared Sound Power (LWAd)
The Declared Noise Emission in accordance with ISO 9296 for the OptiPlex 7020 MT is as follows: (all
values LWAd expressed in bels; 1 bel=10 decibels, re 10-12 Watts)
Operating Mode
Declared Sound Power(LWAd)
Idle 4.0
HDD Operating 4.0
CPU Stressed 4.4
ODD Operating 5.6
A-Weighted Sound Pressure Level (dB)
The Declared A-weighted Sound Pressure Level in decibels (re 2x10-5 Pa), at Operator and Bystander
Positions are measured in accordance with ISO 7779 7.6.1, 7.6.2, and C.15.2 and declared in
accordance with ISO 9296 for this product is as follows
1
:
Declared Sound Pressure (LpA)
Tabletop System
Floor Standing System
Operating Mode
Operator
Position
Bystander
Position
Operator
Position
Bystander
Position
Idle
30.4
27.1
24.9
25.5
HDD Operating
29.9
26.7
24.4
25.2
CPU Stressed
34.0
30.3
26.1
26.1
ODD Operating
46.8
42.1
38.6
37.1
1 All tests are conducted according to ISO 7779 and declared according to ISO 9296 except CPU
Stressed. This test mode is not specified in ISO 7779, but was measured using the same microphone
distances and measurement techniques defined for the other reported operating modes.
2 Declared Sound Power rounded to nearest tenth of a bel per ISO 9296 section 4.4.2