Acoustical Noise Specifications - HP E8400A C-Size VXI Mainframe User And Service Manual

Cooling Specification
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Acoustical Noise Specifications

Appendix A
Chart
2
Airflow, liters/sec
These curves represent airflow through a single slot with the following
conditions:
•
fans at full speed
•
all other slots empty
•
filler panels installed over all other slots
•
optional air filter not installed
Low Fan Speed: 44 dBA sound power at bystander position one meter in
front of mainframe.
High Fan Speed: 52 dBA sound power at bystander position one meter in
front of mainframe.
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Specifications 53