Dell OptiPlex 990 Technical Guide - Page 46

Acoustic Noise Emission Information - sata adapters

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DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK -V 1.0 ACOUSTIC NOISE EMISSION INFORMATION OPTIPLEX 990 MT Component Typical Configuration High-end Configuration CPU Intel i3,3.3GHZ,2c SNB 65W Intel i5,3.1GHZ ,4c SNB 95W Memory 2G DDR3 1333MHz 2G DDR3 1333MHz(x2) HDD (#, capacity) 250G 7200RPM SATA2 500G 7200RPM SATA2(x2) RMSD 16X DVD+/-RW SATA HH 16X DVD+/-RW SATA HH Graphics Adapter Intel® HD Graphics Family ATI Radeon HD 6350 The Declared Noise Emission in accordance with ISO 9296 for the Dell OptiPlex 990 MT is as follows: (all values LWAd expressed in bels; 1 bel=10 decibels, re 10-12 Watts) Operating Mode Idle HDD Operating 90% CPU ODD Operating Typical Configuration Declared Sound Power (LWAd) 3.7 3.9 3.8 5.1 High-end Configuration Declared Sound Power (LWAd) 3.9 3.9 4.0 5.1 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 (LpA) Table-Top Floor-Standing High-end Configuration Declared Sound Pressure (LpA) 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) 26.5 24.2 21.0 21.2 26.7 24.9 21.1 20.9 26.7 24.8 21.6 21.3 39.7 35.8 36.6 36.1 26.8 26.8 30.0 40.7 24.3 23.9 26.3 36.0 20.9 21.8 22.4 35.4 21.4 21.4 22.0 33.5 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 46

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DELL™ OPTIPLEX™ 990
TECHNICAL GUIDEBOOK
—
V 1.0
46
ACOUSTIC NOISE EMISSION INFORMATION
OPTIPLEX 990 MT
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
Intel i3,3.3GHZ,2c SNB 65W
Intel i5,3.1GHZ
,
4c SNB 95W
Memory
2G DDR3 1333MHz
2G DDR3 1333MHz(x2)
HDD (#, capacity)
250G 7200RPM SATA2
500G 7200RPM SATA2(x2)
RMSD
16X DVD+/-RW SATA HH
16X DVD+/-RW SATA HH
Graphics Adapter
Intel® HD Graphics Family
ATI Radeon HD 6350
The Declared Noise Emission in accordance with ISO 9296 for the Dell OptiPlex 990 MT is as follows:
(all values L
WAd
expressed in bels; 1 bel=10 decibels, re 10
-12
Watts)
Operating Mode
Typical Configuration
Declared Sound Power (L
WAd
)
High-end Configuration
Declared Sound Power (L
WAd
)
Idle
3.7
3.9
HDD Operating
3.9
3.9
90% CPU
3.8
4.0
ODD Operating
5.1
5.1
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
:
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
26.5
24.2
21.0
21.2
26.8
24.3
20.9
21.4
HDD Operating
26.7
24.9
21.1
20.9
26.8
23.9
21.8
21.4
90% CPU
26.7
24.8
21.6
21.3
30.0
26.3
22.4
22.0
ODD Operating
39.7
35.8
36.6
36.1
40.7
36.0
35.4
33.5