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OptiPlex 980 Technical Guidebook Page 47
Acoustic Noise Emission Information
Optiplex 980 MT
Component
High-end Configuration
Typical Configuration
EcoKit Configuration
CPU
Quad Core i7 2.8 GHz
Dual Core i5 3.2 GHz
Dual Core i5 3.2 GHz
Memory
4 GB DDRIII 800 MHz
2 GB DDRIII 800 MHz
2 GB DDRIII 800 MHz
HDD (#, capacity)
320 GB 7200 RPM SATA x 2
160 GB 7200 RPM SATA
2.5” 160 GB 7200 RPM SATA
RMSD
DVD +/-RW
DVD +/-RW
DVD +/-RW
Graphics Adapter
NVidia GT230 1 GB
Integrated Adapter
Integrated Adapter
The Declared Noise Emission in accordance with ISO 9296 for the Dell Optiplex 980 MT is as follows
1
:
(all values L
WAd
expressed in bels
2
; 1 bel=10 decibels, re 10
-12
Watts; all values L
pA
expressed in decibels
3
, re 2x10
-5
Pa)
Sound Power
Sound Pressure at Operator Position
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 the nearest tenth of a bel per ISO 9296 section 4.4.2
3
Declared Sound Pressure rounded to the nearest whole decibel per ISO 9296 section 4.4.4
Operating Mode
High-end Configuration
Declared Sound Power (L
WAd
)
Typical Configuration
Declared Sound Power (L
WAd
)
EcoKit Configuration
Declared Sound Power (L
WAd
)
Idle
4.2
3.6
3.1
HDD Operating
4.2
3.6
3.0
ODD Operating
5.0
5.0
5.2
90% CPU
4.3
3.6
3.0
Operating Mode
High-end Configuration
Sound Pressure at Operator
Position (L
pA
)
Typical Configuration
Sound Pressure at Operator
Position (L
pA
)
EcoKit Configuration
Sound Pressure at Operator
Position (L
pA
)
Desktop
Desk side
Desktop
Desk side
Desktop
Desk side
Idle
33
26
27
21
22
18
HDD Operating
32
25
27
22
22
17
ODD Operating
43
36
44
41
44
38
90% CPU
33
26
26
20
22
18