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OptiPlex 980 Technical Guidebook Page 48
Sound Pressure at Bystander Position
Optiplex 980 DT
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
160 GB 7200 RPM SATA
2.5” 160 GB 7200 RPM SATA
RMSD
DVD +/-RW
DVD +/-RW
DVD +/-RW
Graphics Adapter
AMD Radeon HD3470 256MB
Integrated Adapter
Integrated Adapter
The Declared Noise Emission in accordance with ISO 9296 for the Dell Optiplex 980 MT is as follows
3
:
(all values L
WAd
expressed in bels
4
; 1 bel=10 decibels, re 10
-12
Watts; all values L
pA
expressed in decibels
3
, re 2x10
-5
Pa)
Sound Power
3
All tests are conducted according to IS 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.
4
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
Sound Pressure at
Bystander Position (L
pA
)
Typical Configuration
Sound Pressure at
Bystander Position (L
pA
)
EcoKit Configuration
Sound Pressure at
Bystander Position (L
pA
)
Desktop
Desk side
Desktop
Desk side
Desktop
Desk side
Idle
28
24
22
21
18
17
HDD Operating
27
24
23
21
19
17
ODD Operating
37
34
37
37
37
35
90% CPU
28
25
21
21
19
17