Dell OptiPlex 390 Technical Guide - Page 38

Typical Configuration Declared Sound Pressure

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DELL™ OPTIPLEX™ 390 TECHNICAL GUIDEBOOK -FINAL ACOUSTIC NOISE EMISSION INFORMATION OPTIPLEX 390 SFF Component CPU Typical Configuration Intel i5,3.1GHZ,4c SNB 95W High-end Configuration Intel i5,3.1GHZ,4c SNB 95W Memory 4GB DDR3 1333MHz 4GB DDR3 1333MHz HDD (#, capacity) 1TB 7200RPM SATA3 1TB 7200RPM SATA3 RMSD 8X DVD+/-RW SATA 12.7 8X DVD+/-RW SATA 12.7 Graphics Adapter Intel® HD Graphics Family ATI Radeon HD 6450 The Declared Noise Emission in accordance with ISO 9296 for the Dell OptiPlex 390 SFF is as follows: (all values LWAd expressed in bels; 1 bel=10 decibels, re 10-12 Watts) Operating Mode Idle HDD Operating 90% CPU ODD Operating Typical Configuration Declared Sound Power (LWAd) 3.7 3.7 4.5 4.6 High-end Configuration Declared Sound Power (LWAd) 3.7 3.7 4.5 4.6 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 accordance with ISO 9296 for this product is as Operating Mode Typical Configuration Declared Sound Pressure (LpA) Table-Top Floor-Standing High-end Configuration Declared Sound Pressure (LpA) Table-Top Floor- Standing Operator Position (LpA) Bystander Position (LpA) Operator Position (LpA) Bystander Position (LpA) Operator Position (LpA) Bystander Position (LpA) Operator Position (LpA) Bystander Position (LpA) Idle HDD Operating 90% CPU ODD Operating 26.1 22.7 19.0 19.2 26.0 22.7 19.0 19.4 33.2 29.7 26.0 25.7 36.6 31.1 29.7 28.4 25.9 25.8 33.4 36.7 22.6 22.4 29.9 31.1 18.8 18.8 24.9 29.3 19.1 19.1 25.3 28.6 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 nearest tenth of a bel per ISO 9296 section 4.4.2 38

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DELL™ OPTIPLEX™ 390
TECHNICAL GUIDEBOOK
—
FINAL
38
ACOUSTIC NOISE EMISSION INFORMATION
OPTIPLEX 390 SFF
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 nearest tenth of a bel per ISO 9296 section 4.4.2
The Declared Noise Emission in accordance with ISO 9296 for the Dell OptiPlex 390 SFF is as follows:
(all values L
WAd
expressed in bels; 1 bel=10 decibels, re 10
-12
Watts)
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 accordance with ISO 9296 for this product is as
Operating Mode
Typical Configuration
Declared Sound Power (L
WAd
)
High-end Configuration
Declared Sound Power (L
WAd
)
Idle
3.7
3.7
HDD Operating
3.7
3.7
90% CPU
4.5
4.5
ODD Operating
4.6
4.6
Operating Mode
Typical Configuration Declared Sound Pressure
(LpA)
High-end Configuration Declared Sound Pressure
(LpA)
Table-Top
Floor-Standing
Table-Top
Floor- Standing
Operator
Position
(LpA)
Bystander
Position
(LpA)
Operator
Position
(LpA)
Bystander
Position
(LpA)
Operator
Position
(LpA)
Bystander
Position
(LpA)
Operator
Position
(LpA)
Bystander
Position
(LpA)
Idle
26.1
22.7
19.0
19.2
25.9
22.6
18.8
19.1
HDD Operating
26.0
22.7
19.0
19.4
25.8
22.4
18.8
19.1
90% CPU
33.2
29.7
26.0
25.7
33.4
29.9
24.9
25.3
ODD Operating
36.6
31.1
29.7
28.4
36.7
31.1
29.3
28.6
Component
Typical Configuration
High-end Configuration
CPU
Intel i5,3.1GHZ,4c SNB 95W
Intel i5,3.1GHZ,4c SNB 95W
Memory
4GB DDR3 1333MHz
4GB DDR3 1333MHz
HDD (#, capacity)
1TB 7200RPM SATA3
1TB 7200RPM SATA3
RMSD
8X DVD+/-RW SATA 12.7
8X DVD+/-RW SATA 12.7
Graphics Adapter
Intel® HD Graphics Family
ATI Radeon HD 6450