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24 PowerEdge VRTX Technical Guide

PowerEdge VRTX with

standard M620s

PowerEdge VRTX with all

“enhanced acoustics” M620s

and/or all M520s

Figure 9. VRTX acoustics

For background information on Dell Enterprise acoustics, such as metrics and operating conditions,

see the Dell white paper Dell Enterprise Acoustics.

Data summary for VRTX acoustics

Acoustical data for a typical configuration

2.5-inch hard drive version of the VRTX platform with

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

— LwA-UL

= 5.5 bels

— 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 processor and heatsink option

— Idle

> LwA-UL

= 5.5 bels

> LpA

= 37 dBA

— Operating

> LwA-UL

= 5.8 bels

> 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

Value measured at

your ears

Equivalent familiar

noise experience

LpA, dBA,

re 20 µPa

Loudness,

sones

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

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