Acoustic Noise Emission Information - Dell OPTIPLEX 390 Technical Manualbook

DELL™ OPTIPLEX™ 390 TECHNICAL GUIDEBOOK —FINAL
AC OU STI C NOI SE EMI SSI O N I N FOR MA TIO N
OPTIPLEX 390 SFF
Component
CPU
Memory
HDD (#, capacity)
RMSD
Graphics Adapter
The Declared Noise Emission in accordance with ISO 9296 for the Dell OptiPlex 390 SFF is as follows:
(all values L expressed in bels; 1 bel=10 decibels, re 10
WAd
Operating Mode
Idle
HDD Operating
90% CPU
ODD Operating
The Declared A-weighted Sound Pressure Level in decibels (re 2x10
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
Typical Configuration Declared Sound Pressure
Operating Mode
Operator
Position
Idle
HDD Operating
90% CPU
ODD Operating
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
(LpA)
Table-Top
Bystander Operator
Position Position
(LpA) (LpA)
26.1 22.7
26.0 22.7
33.2 29.7
36.6 31.1
Typical Configuration
Intel i5,3.1GHZ,4c SNB 95W
4GB DDR3 1333MHz
1TB 7200RPM SATA3
8X DVD+/-RW SATA 12.7
Intel® HD Graphics Family
-12
Watts)
Typical Configuration
Declared Sound Power (L
WAd
3.7
3.7
4.5
4.6
-5
Pa), at Operator, Bystander, and Desk Side Positions are
Floor-Standing
Bystander
Position
(LpA) (LpA)
19.0 19.2
19.0 19.4
26.0 25.7
29.7 28.4
High-end Configuration
Intel i5,3.1GHZ,4c SNB 95W
4GB DDR3 1333MHz
1TB 7200RPM SATA3
8X DVD+/-RW SATA 12.7
ATI Radeon HD 6450
High-end Configuration
) Declared Sound Power (L
High-end Configuration Declared Sound Pressure
(LpA)
Table-Top
Operator Bystander
Position Position
(LpA) (LpA)
25.9 22.6
25.8 22.4
33.4 29.9
36.7 31.1
)
WAd
3.7
3.7
4.5
4.6
Floor- Standing
Operator Bystander
Position Position
(LpA) (LpA)
18.8 19.1
18.8 19.1
24.9 25.3
29.3 28.6
40