Dell E190S - 19" LCD Monitor Технічний посібник - Сторінка 35
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DELL™ OPTIPLEX™ 760 TECHNICAL GUIDEBOOK V1.0
ACOUSTIC NOISE EMISSION INFORMATION
OPTIPLEX 760 DT
Component
CPU
Memory
HDD (#, capacity)
RMSD
Graphics Adapter
The Declared Noise Emission in accordance with ISO 9296 for the Dell Optiplex 760 DT 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
1
follows
:
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
Typical Configuration
E7200
512MB DDRII 667MHz (x2)
80 GB 7200 RPM SATA2
DVDRW/DVD dual config
Integrated GMA3100
Typical Configuration
Declared Sound Power (L
3.7
3.7
3.7
5.2
(LpA)
Table-Top
Bystander
Operator
Position
Position
(LpA)
(LpA)
28.0
22.8
28.2
23.0
28.0
22.6
41.5
37.2
High-end Configuration
2GB DDRII 800 MHz (x4)
250 GB 7200 RPM SATA2 (x1)
DVDRW/DVD dual config
ATI RADEON HD 2400 XT
-12
Watts)
High-end Configuration
)
Declared Sound Power (L
WAd
-5
Pa), at Operator, Bystander, and Desk Side Positions are
High-end Configuration Declared Sound Pressure
Floor-Standing
Bystander
Position
(LpA)
(LpA)
22.1
20.8
22.0
20.6
22.1
20.5
35.9
33.3
Q9650
)
WAd
4.1
4.1
4.4
5.2
(LpA)
Table-Top
Operator
Bystander
Position
Position
(LpA)
(LpA)
31.4
25.4
32.0
26.1
37.4
28.6
42.5
36.8
Floor- Standing
By-
Operator
stander
Position
Position
(LpA)
(LpA)
23.1
21.4
24.1
22.2
25.8
23.9
34.4
33.5
35