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90% CPU
ODD Operating
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
follows1:
Typical Configuration Declared Sound Pressure
High-end Configuration Declared Sound Pressure
(LpA)
(LpA)
Table-Top
Floor-Standing
Table-Top
Floor- Standing
Operator
Bystander
Operator
Bystander
Operator
Bystander
Operator
Bystander
Position
Position
Position
Position
Position
Position
Position
Position
(LpA)
(LpA)
(LpA)
(LpA)
(LpA)
(LpA)
(LpA)
(LpA)
26.9
22.6
21.9
21.1
34.6
27.8
24.9
23.8
26.5
22.5
22.1
21.2
35.1
28.3
25.1
24.1
31.8
28.7
23.2
23.0
38.2
31.7
29.5
27.7
42.8
39.8
36.6
35.4
40.0
33.8
31.8
30.4
Operating Mode
Idle
HDD Operating
90% CPU
ODD Operating
1
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
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
Declared Sound Power rounded to nearest tenth of a bel per ISO 9296 section 4.4.2
36
Component
CPU
Memory
HDD (#, capacity)
RMSD
Graphics Adapter
Typical Configuration
High-end Configuration
E7200
E8400
1 GB DDR2 667 MHz
2 GB DDR2 800 MHz
80 GB 3.5” 7200 RPM SATA2
160 GB 3.5” 7200 RPM SATA2
DVD +/- RW
DVD +/- RW
Intel Integrated Adapter
Intel Integrated Adapter
DELL™ OPTIPLEX™ 760 TECHNICAL GUIDEBOOK V1.0
ACOUSTIC NOISE EMISSION INFORMATION
OPTIPLEX 760 USFF
The Declared Noise Emission in accordance with ISO 9296 for the Dell Optiplex 760 USFF is as follows:
(all values LWAd expressed in bels; 1 bel=10 decibels, re 10-12 Watts)
Typical Configuration
High-end Configuration
Declared Sound Power (LWAd)
Declared Sound Power (LWAd)
3.9
4.0
3.9
3.9
4.7
4.9
3.9
3.9
Operating Mode
Idle
HDD Operating
ODD Operating
90% CPU
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
follows1:
Typical Configuration
High-end Configuration
Declared Sound Pressure (LpA)
Declared Sound Pressure (LpA)
Operator
Bystander
DeskSide
Operator
Bystander
DeskSide
Position (LpA)
Position (LpA)
Position (LpA)
Position (LpA)
Position (LpA)
Position (LpA)
30
28
25
32
28
22
30
28
25
32
28
22
38
33
31
42
35
26
29
27
25
32
28
24
Operating Mode
Idle
HDD Operating
ODD Operating
90% CPU
1
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
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
Declared Sound Power rounded to nearest tenth of a bel per ISO 9296 section 4.4.2
37
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