Acoustical Noise Declaration for IBM System p 595 (More Information)

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
Typical configuration: Two processor nodes (9119-595), Bulk Power Module, and two I/O drawers. Nominal operating conditions, with Slimline door set 8.3 8.3 65 65
Maximum configuration: Four processor nodes (9119-595), Bulk Power Module, and four I/O drawers. Nominal operating conditions, with Slimline door set 8.6 (5) 8.6 (5) 68 (5) 68 (5)

Notes:
1. LWAd is the statistical upper-limit A-weighted sound power level (rounded to the nearest 0.1 B);
2. LWAd 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;
5. Attention: Your server installation may be subject to government regulations (such as those prescribed by OSHA or European Community Directives) that cover noise level exposure in the workplace. This system is available with an optional acoustical door feature that can reduce the likelihood of exceeding noise level exposure limits for densely populated racks. The actual sound pressure levels in your installation will depend on a variety of factors, including the number of racks in the installation; the size, materials, and configuration of the room where the racks are installed; the noise levels from other equipment; the room ambient temperature, and employees' location in relation to the equipment. It is recommended that a qualified person, such as an industrial hygienist, be consulted to determine whether or not the sound pressure levels to which employees may be exposed exceed regulatory limits.


Information on Relative Noisiness
Actual LWAd for this product 7.6
LWAd for a product that would sound roughly twice as loud or twice as noisy 8.6
LWAd for a product that would sound roughly half as loud or half as noisy 6,6
Typical range of LWAd values for similar IBM mainframe servers (B) 7.5-8.7

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.