69
Determine Temperature/Humidity 
Requirements
The following table lists the computer room temperature and humidity 
specifications for rp7400 servers.
NOTE Operating ranges refer to the ambient air temperature 
and humidity measured at the cabinet cooling air intake 
vents.
Temperature and humidity specifications
a
Parameter Recommended
Operating Range
Recommended Maximum
rate of change (per hour)
Temperature
b
41
o
 to 104
o
 F
(0
o
 to 40
o
 C)
50
o
 F nonrepetitive
10
o
 C nonrepetitive
(repetitive maximums not 
tested)
Operating Humidity 15% - 80%, non-condensing
at 65
o
 C
30% RH/hour
a. These are recommended values. For operation outside these ranges, contact your 
Hewlett-Packard site preparation specialist.
b. At altitudes up to 3,000 meters.