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internal power problem (see "Power Problems" in
your computer Owner's Manual).
Hard-drive access light
green
Link integrity light (on integrated network adapter)
green light — A good connection exists between a
10-Mbps network and the computer.
orange light — A good connection exists between a
100-Mbps network and the computer.
off (no light) — The computer is not detecting a
physical connection to the network.
Activity light (on integrated network adapter)
yellow blinking light
Diagnostic lights
four lights on the front panel (See "Dell Diagnostics"
for an explanation of the diagnostic light codes.)
Standby power light
AUX_PWRLED on the system board
Activity light (optional Media Card Reader)
green blinking light
Power
DC power supply:
Wattage
275 W
Heat dissipation
460.7 BTU/hr
Voltage (See the safety instructions in the
Product Information Guide for important voltage
setting information.)
fixed-voltage power supply — 110 V at 50/60 Hz
manual selection and auto-sensing power supplies —
90to135Vat50/60Hz;180to265Vat50/60Hz;
100 V at 50/60 Hz for Japanese computers
Backup battery
3-V CR2032 lithium coin cell
Physical
Height
31 cm (12.2 inches)
Width
9.1 cm (3.6 inches)
Depth
36.3 cm (14.3 inches)
Weight
7.4 kg (16.4 lb)
Environmental
Temperature:
Operating
10°to35°C(50°to95°F)
Storage
–40°to65°C(–40°to149°F)
Relative humidity
20% to 80% (noncondensing)
Maximum vibration:
Operating
0.25 G at 3 to 200 Hz at 0.5 octave/min
Storage
0.5 G at 3 to 200 Hz at 1 octave/min
Maximum shock:
Operating
bottom half-sine pulse with a change in velocity of
50.8cm/sec(20inches/sec)
Storage
27-G faired square wave with a velocity change of
508cm/sec(200inches/sec)
Altitude:
Operating
–15.2 to 3048 m (–50 to 10,000 ft)
Storage
–15.2 to 10,668 m (–50 to 35,000 ft)