Dell poweredge VRTX Technical Manual - Page 24

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Dell poweredge VRTX Technical Manual
PowerEdge VRTX with
standard M620s
PowerEdge VRTX with all
"enhanced acoustics" M620s
and/or all M520s
For background information on Dell Enterprise acoustics, such as metrics and operating conditions,
see the Dell white paper
Data summary for VRTX acoustics
Acoustical data for a typical configuration
three sample blade configurations and utilizations in 23 ± 2 °C ambient (per ISO acoustical
standards) are as follows:
All M520 server nodes at idle and operating
3
—
LwA-UL
= 5.5 bels
4
—
LpA
= 37 dBA
—
No prominent tones
—
What this means: These levels would be masked by most open office environments, such as
air-conditioning noise and conference room conversation. For this configuration, the system
at 50% workload sounds the same as at idle.
One or more M620 server nodes with the enhanced acoustics
2
—
Idle
3
LwA-UL
= 5.5 bels
>
4
LpA
= 37 dBA
>
2
—
Operating
3
LwA-UL
= 5.8 bels
>
4
LpA
= 38 dBA
>
No prominent tones
>
—
What this means: These levels would be masked by most open office environments, such as
air-conditioning noise and conference room conversation. For this configuration, the system
at 50% workload is 30% louder than at idle. The enhanced acoustics option uses fewer
24
PowerEdge VRTX Technical Guide
Figure 9.
VRTX acoustics
Value measured at
your ears
LpA, dBA,
Loudness,
re 20 µPa
sones
90
80
75
39
60
10
45
4
35
2
30
1
20
0
Dell Enterprise
Acoustics.
1
2.5-inch hard drive version of the VRTX platform with
2
5
5
Equivalent familiar
noise experience
Loud concert
Data center, vacuum cleaner, voice
must be elevated to be heard
Conversation levels
Whispering, open office layout,
normal living room
Quiet office
Quiet library
Recording studio
processor and heatsink option