DELL™ OPTIPLEX™ 760 TECHNICAL GUIDEBOOK V1.0
34
ACOUSTIC NOISE EMISSION INFORMATION
Component Typical Configuration High-end Configuration
CPU E7200 Q9650
Memory 512MB DDRII 667MHz (x2) 2GB DDRII 800 MHz (x4)
HDD (#, capacity) 80 GB 7200 RPM SATA2 250 GB 7200 RPM SATA2 (x2)
RMSD DVDRW/DVD dual config DVDRW/DVD dual config
Graphics Adapter Integrated GMA3100 ATI RADEON HD 2400 XT
OPTIPLEX 760 MT
The Declared Noise Emission in accordance with ISO 9296 for the Dell Optiplex 760 MT is as follows:
(all values LWAd expressed in bels; 1 bel=10 decibels, re 10-12 Watts)
Operating Mode Typical Configuration
Declared Sound Power (LWAd) High-end Configuration
Declared Sound Power (LWAd)
Idle 3.7 4.4
HDD Operating 3.7 4.4
90% CPU 4.0 4.5
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
follows1:
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)
By-
stander
Position
(LpA)
Idle 26.7 22.9 22.0 20.7 36.9 30.3 28.1 27.9
HDD Operating 26.9 23.2 22.2 20.9 36.0 29.0 29.0 28.7
90% CPU 31.6 27.1 23.2 22.6 37.4 31.6 30.0 29.4
ODD Operating 41.1 35.6 36.0 33.5 42.5 35.5 35.7 34.2
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