HP Dv4 1540us Service Guide - Page 134
Specifications, Computer specifications
UPC - 884962549049
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6 Specifications Computer specifications Metric U.S. Dimensions Height (front to back) 2.60 to 3.90 cm 1.02 to 1.54 in Width 33.40 cm Depth 23.70 cm Weight (with optical drive, hard drive, and battery) 2.49 kg Input power 13.15 in 9.33 in 5.49 lbs Operating voltage Operating current Temperature Operating (not writing to optical disc) Operating (writing to optical disc) Nonoperating Relative humidity 18.5 V dc -19.0 V dc 3.5 A or 4.74 A 0°C to 35°C 5°C to 35°C -20°C to 60°C 32°F to 95°F 41°F to 95°F -4°F to 140°F Operating 10% to 90% Nonoperating 5% to 95% Maximum altitude (unpressurized) Operating -15 m to 3,048 m -50 ft to 10,000 ft Nonoperating -15 m to 12,192 m -50 ft to 40,000 ft NOTE: Applicable product safety standards specify thermal limits for plastic surfaces. The computer operates well within this range of temperatures. 126 Chapter 6 Specifications