Skip to main content

 
IBM Systems  > Systems Servers  > Acoustical  > 

IBM Systems - Acoustical Noise Declaration for System z9 109

  
Declared Noise Emissions in Accordance with ISO 9296
Product Description Declared A-Weighted Sound Power Level,
L WAd (B) 		Declared A-Weighted Sound Pressure Level,
L pAm (dB)
Operating Idling Operating Idling
Typical configuration: Two processor books and three I/O cages. Nominal operating conditions and front and rear doors closed. 7.5 7.5 55 55

Notes:
1.  LWAd is the statistical upper-limit A-weighted sound power level (rounded to the nearest 0.1 B);
2.  LpAm is the mean A-weighted emission sound pressure level measured at the 1-meter bystander positions (rounded to the nearest dB);
3.  10 dB (decibel) = 1 B (bel);
4.  All measurements made in conformance with ISO 7779 and declared in conformance with ISO 9296


 
More information
More information on the noise emissions of the IBM System z9 109  
What is an Acoustical Noise Declaration?  
Acoustical Noise Declarations for other IBM Products