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Acoustical Noise Declaration for pSeries 690 Enterprise Server

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
IBM eServer™® p690 Model 681 configured with one processor subsytem, one I/O drawer with 4 disk drives, bulk power subsytem, and Acoustical doors 7.5 7.5 57 57

1 L WAd is the statistical upper-limit A-weighted sound power level (rounded to the nearest 0.1 B);

2 L pAm 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.