IBM eserver pSeries 7311 D10 User Manual

Four D10 I/O subsystems 6.2
5
6.2
5
46
6
46
6
Notes:
1. Noise levels cited are for the typical configuration (A-Frame: Bulk Power, CEC cage, battery
option, media drawer, and two I/O drawers).
2. The 0.6-B (6-dB) reduction in noise emission levels with the acoustical rear door corresponds
to a factor of 4 reduction. That is, the noise level of a single A-Frame with Slimline covers is
about the same as the noise level of four A-Frames with acoustical covers.
3. L
WAd
is the upper-limit A-weighted sound power level; LpAm is the mean A-weighted sound
pressure level at the 1-meter bystander positions;1B=10dB.
4. All measurements made in conformance with ISO 7779 and declared in conformance with
ISO 9296.
pSeries 7311 Model D20 Declared Acoustical Noise Emissions
Acoustical Characteristic
Product Configuration Declared A-Weighted Sound
Power Level, L
WAd
(B)
Declared A-Weighted Sound
Pressure Level, LpAm (dB)
Operating Idle Operating Idle
D20 I/O subsystem 6.1
5
6.0
5
44
6
43
6
Notes:
1. Noise levels cited are for the typical configuration (A-Frame: Bulk Power, CEC cage, battery
option, media drawer, and two I/O drawers).
2. The 0.6-B (6-dB) reduction in noise emission levels with the acoustical rear door corresponds
to a factor of 4 reduction. That is, the noise level of a single A-Frame with Slimline covers is
about the same as the noise level of four A-Frames with acoustical covers.
3. L
WAd
is the upper-limit A-weighted sound power level; LpAm is the mean A-weighted sound
pressure level at the 1-meter bystander positions;1B=10dB.
4. All measurements made in conformance with ISO 7779 and declared in conformance with
ISO 9296.
202 Eserver pSeries 7311 Model D10 and Model D20 Service Guide

IBM eserver pSeries 7311 D10 Specifications

General

Brand	IBM
Model	eserver pSeries 7311 D10
Category	Server
Language	English