Declared noise emissions

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Declared noise emissions in accordance with ISO 9296(1, 2, 3)

Table 1. Declared noise emissions in accordance with ISO 9296(1, 2, 3)
Product description Declared A-Weighted

Sound Power Level,

LWAd (B)

 Declared A-Weighted

Sound Pressure Level,

LpAm (dB)
  Operating Idling Operating Idling
Models - A00, A01, M01

@ 25 deg. C room ambient

 7.2(4) 6.8 56 52
Models - A00, A01, M01

@ 35 deg. C room ambient

 7.2(4) 7.2(4) 56 56
Models - A00, A01, M01

@ 25 deg. C room ambient

Acoustical Doors Feature codes

FC EC07 = back FC EC08 = front

 6.6 6.2 49 45
Models - A00, A01, M01

@ 35 deg. C room ambient

Acoustical Doors Feature codes

FC EC07 = back FC EC08 = front

 6.6 6.6 49 49
Notes -
  1. Declared level LWAd is the upper-limit A-weighted sound power level; Declared level LpAm is the mean A-weighted sound pressure level that is measured at the 1-meter bystander positions.
  2. All measurements made in conformance with ISO 7779 and declared in conformance with ISO 9296.
  3. B, dB, abbreviations for bels and decibels. 1 B = 10 dB.
  4. Note: Government regulations (such as the ones prescribed by OSHA or European Community Directives) can govern noise level exposure in the workplace and might apply to you and your server installation. This IBM system is available with an acoustical door feature that can help reduce the noise that is emitted from this system. The actual sound pressure levels in your installation depend upon various factors, including the number of racks in the installation; the size, materials, and configuration of the room where you designate the racks to be installed; the noise levels from other equipment; the room ambient temperature, and employees' location in relation to the equipment. Further, compliance with such government regulations also depends upon various extra factors, including the duration of employees' exposure and whether employees wear hearing protection. IBM recommends that you consult with qualified experts in this field to determine whether you are in compliance with the applicable regulations.