Dell OptiPlex 580 - Acoustic Noise Emission Information; MT Model Noise Data

OptiPlex580TechnicalGuidebook Page44
Acoustic Noise Emission Information
Optiplex 580 MT
Component Typical Configuration
CPU Phenom II X2 B24 65W
Memory 1 GB DDRIII 1333 MHz
HDD (#, capacity) 160 GB 7200 RPM SATA
RMSD DVD ROM
Graphics Adapter AMD Radeon HD3470 256MB
The Declared Noise Emission in accordance with ISO 9296 for the Dell Optiplex 580 MT is as follows
1
:
(all values L
WAd
expressed in bels
2
; 1 bel=10 decibels, re 10
-12
Watts; all values L
pA
expressed in decibels
3
, re 2x10
-5
Pa)
Sound Power
Sound Pressure at Operator Position
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 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 the nearest tenth of a bel per ISO 9296 section 4.4.2
3
Declared Sound Pressure rounded to the nearest whole decibel per ISO 9296 section 4.4.4
Operating Mode
Typical Configuration
Declared Sound Power (L
WAd
)
Idle 3.6
HDD Operating 3.6
ODD Operating 5.1
90% CPU 3.6
Operating Mode
Typical Configuration
Sound Pressure at Operator
Position (L
pA
)
Desktop Desk side
Idle 27.0 21.0
HDD Operating 27.1 21.2
ODD Operating 42.4 36.8
90% CPU 26.7 21.2