| 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™® pSeries® 630
Model 7028-6E4-221E
Power 4+ 1.2 GHz
Deskside UNIX server |
|
6.0 |
|
5.9 |
|
42 |
|
41 |
|
IBM eServer™ pSeries 630
Model 7028-6E4-221E with acoustic attenuation kit P/RPQ : 8A1221 Revision 0001 |
|
5.7 |
|
5.6 |
|
38 |
|
37 |
|
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
| Information on Relative Noisiness |
| Actual L WAd for this product |
|
6.0 |
|
| L WAd for a product that would sound roughly twice as loud or twice as noisy |
|
7.0 |
|
| L WAd for a product that would sound roughly half as loud or half as noisy |
|
5.0 |
|
| Typical range of L WAd values for similar IBM low-end servers |
|
5.5-6.8 B |
|
| Information on the Emission of Prominent Discrete Tones and Impulsive Noise |
| This product emits no prominent discrete tones according to the methods of ECMA-74, Annex D. |
|
| This product emits no impulsive noise according to the methods of ECMA-74, Annex E. |
|
| 
