Site Preparation Guide, Third Edition - HP 9000 rp8420 Server

Chapter 1
System Specifications
Environmental Specifications
8
Acoustic Noise Specification
The acoustic noise specification for the HP 9000 rp8420 server is 55.6 db (sound pressure level at bystander
position). It is appropriate for dedicated computer room environments, not office environments. The LwA is
7.4 Bels. Care should be taken to understand the acoustic noise specifications relative to operator positions
within the computer room or when adding servers to computer rooms with existing noise sources.
Air Flow
The recommended HP 9000 rp8420 server cabinet air intake temperature is between 68° F and 77° F
(20° C and 25° C) at 560 CFM.
Figure 1-1 illustrates the location of the inlet and outlet airducts on a single cabinet. Air is drawn into the
front of the HP 9000 rp8420 server and forced out the rear.
Figure 1-1 Airflow Diagram