Humidity
HumidityHumidity
Humidity
Operating
OperatingOperating
Operating
10% to 90% relative humidity (Rh), 86°F (30°C)
maximum wet bulb temperature, non-condensing
Storage
StorageStorage
Storage
10% to 95% relative humidity (Rh), 101.66°F
(38.7°C) maximum wet bulb temperature, non-
condensing
Altitude
AltitudeAltitude
Altitude
Operating
OperatingOperating
Operating
0 to 10,000 feet (0 to 3048 meters) – This value
may be limited by the type and number of
options installed. Maximum allowable altitude
change rate is 1,000 ft/min (304.8 m/min).
Non-Operating
Non-OperatingNon-Operating
Non-Operating
0 to 30,000 feet (0 to 9,144 meters) – Maximum
allowable altitude change rate is 1200 ft/min
(365.76 m/min).
Shock
ShockShock
Shock
Listed are the levels of shock the product can withstand with NO damage
being incurred. The values represent peak input acceleration during a 2 to 3
ms half-sine shock pulse, 11 ms trapezoidal shock pulse.
Non-Operating
Non-OperatingNon-Operating
Non-Operating
35G's (Half-sine Shock)
35G's (Trapezoidal Shock)
Vibration
VibrationVibration
Vibration
Listed are the levels of vibration the product can withstand with NO damage
being incurred. The values represent a flat random vibration input
acceleration profile across the given frequency range.
Operating
OperatingOperating
Operating
2
/Hz,
2
2
/Hz,
2
/Hz
5Hz to 300Hz, (0.25G's nominal).
Non-Operating
Non-OperatingNon-Operating
Non-Operating
Random vibration at 0.008G²/Hz,
10Hz to 500Hz, (2 Grms nominal).
Acoustic Noise
Acoustic NoiseAcoustic Noise
Acoustic Noise
Listed are the declared A-WEIGHTED SOUND POWER LEVELS (LWAd) and
declared average desktop seated operator position A-WEIGHTED SOUND
PRESSURE LEVELS (LpAm) when the product is operating in a 73.4°F (23°C)
ambient environment. Noise emissions were measured in accordance with
ISO 7779 (ECMA 74) and declared in accordance with ISO 9296 (ECMA
109).
IDLE
IDLEIDLE
IDLE
(Fixed disk drive
spinning)
LWAd = 4.3 Bels,
Desktop Average LpAm = 32dBA
FIXED DISK
FIXED DISKFIXED DISK
FIXED DISK
(Random
write)
LWAd = 4.8 Bels,
Desktop Average LpAm = 37dBA
CD-ROM
CD-ROMCD-ROM
CD-ROM
(Sequential
Reads)
LWAd = 5.0 Bels,
Deskside Average LpAm = 39dBA
QuickSpecs
HP Compaq dx2420 Microtower Business PC
HP Compaq dx2420 Microtower Business PCHP Compaq dx2420 Microtower Business PC
HP Compaq dx2420 Microtower Business PC
System Details
DA - 13293 EMEA — Version 6 — November 19, 2009
Page 10
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