HP A7818-IE002 - Manual (Page 22)

System Overview
Specifications And Characteristics
Chapter 1 22
Environmental Specifications
Operating temperature and humidity ranges may vary depending on the installed mass
storage devices. High humidity levels can cause improper disk operation. Low humidity
levels can aggravate static electricity problems and cause excessive wear of the disk
surface.
Environmental Specifications (System Processing Unit with Hard Disk)
Operating Temperature +10 ˚C to +35 ˚C (+40 ˚F to +95 ˚F).
Storage Temperature -40 ˚C to +70˚C (-40 ˚F to +158 ˚F).
Over-Temperature Shutdown +50˚C (+122˚F)
Operating Humidity
15% to 80% (relative).
a
Storage Humidity 8% to 85% (relative).1
Acoustic noise emission (as defined in ISO
7779):
• Operating
• Operating with hard disk access
• Operating with floppy disk access
Sound Power
LwA <= 40.5dB
LwA <= 41.4dB
LwA <= 43.2dB
Sound Pressure
LpA <= 25.7dB
LpA <= 26.5dB
LpA <= 30.0dB
Operating Altitude 10,000ft (3100m) max
Storage Altitude 15,000ft (4600m) max
a. noncondensing conditions.