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Acoustical Noise Declaration for IBM System i5 550

Declared Noise Emissions in Accordance with ISO 9296
Product Description Declared A-Weighted Sound Power Level, LWAd(B) Declared A-Weighted Sound Pressure Level, LpAm(dB)
Operating Idling Operating Idling
Tower Server Model 9406-550 2 Hard files, non-redundant Power 6.0 5.9 42 41
Rack Server Model 9406-550 2 Hard files, non-redundant Power 6.1 6.0 44 43
Rack Server Model 9406-550 8 Hard files, redundant Power 6.3 6.2 45 45

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

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