Dell OEM Ready Optiplex 760 Technical Guide - Page 36

Typical Configuration Declared Sound Pressure

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DELL™ OPTIPLEX™ 760 TECHNICAL GUIDEBOOK V1.0 ACOUSTIC NOISE EMISSION INFORMATION OPTIPLEX 760 SFF Component CPU Memory HDD (#, capacity) RMSD Graphics Adapter Typical Configuration E7200 512MB DDRII 667MHz (x2) 80 GB 7200 RPM SATA2 DVDRW/DVD dual config Integrated GMA3100 High-end Configuration Q9650 2GB DDRII 800MHz (x4) 250 GB 7200 RPM SATA2 (x1) DVDRW/DVD dual config ATI RADEON HD 2400 XT The Declared Noise Emission in accordance with ISO 9296 for the Dell Optiplex 760 SFF is as follows: (all values LWAd expressed in bels; 1 bel=10 decibels, re 10-12 Watts) Operating Mode Idle Typical Configuration Declared Sound Power (LWAd) 3.7 High-end Configuration Declared Sound Power (LWAd) 4.2 HDD Operating 3.7 4.3 90% CPU 4.1 4.7 ODD Operating 4.9 4.8 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: Operating Mode Idle HDD Operating 90% CPU ODD Operating Typical Configuration Declared Sound Pressure High-end Configuration Declared Sound Pressure (LpA) (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) 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 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 36

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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