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DELL™ OPTIPLEX™ 760 TECHNICAL GUIDEBOOK V1.0
36
ACOUSTIC NOISE EMISSION INFORMATION
OPTIPLEX 760 SFF
The Declared Noise Emission in accordance with ISO 9296 for the Dell Optiplex 760 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
follows
1
:
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
Component
Typical Configuration High-end Configuration
CPU E7200
Q9650
Memory
512MB DDRII 667MHz (x2)
2GB DDRII 800MHz (x4)
HDD (#, capacity)
80 GB 7200 RPM SATA2
250 GB 7200 RPM SATA2 (x1)
RMSD
DVDRW/DVD dual config DVDRW/DVD dual config
Graphics Adapter Integrated GMA3100 ATI RADEON HD 2400 XT
Operating Mode
Typical Configuration
Declared Sound Power (L
WAd
)
High-end Configuration
Declared Sound Power (L
WAd
)
Idle 3.7 4.2
HDD Operating
3.7 4.3
90% CPU
4.1 4.7
ODD Operating
4.9 4.8
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
26.9 22.6 21.9 21.1 34.6 27.8 24.9 23.8
HDD Operating
26.5 22.5 22.1 21.2 35.1 28.3 25.1 24.1
90% CPU
31.8 28.7 23.2 23.0 38.2 31.7 29.5 27.7
ODD Operating
42.8 39.8 36.6 35.4 40.0 33.8 31.8 30.4