Dell 720H2C Personal Computer User Manual


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amber light — Blinking amber indicates a problem
with an installed device; solid amber indicates an
internal power problem.
Hard-drive access light
green
Network activity light (front panel)
solid green indicates network connection
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.
yellow light — A good connection exists between a 1-
GB (1000-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 when there is activity on the
network; if there is not any network activity, the light
will be off
Diagnostic lights
four lights on the front panel (see Diagnostic Lights)
Standby power light
AUXPWR on the system board
Front panel LEDs
eight multi-colored LEDs provide illumination for the
front of the computer
NOTE: The color of the front panel LEDs can be
adjusted in system setup (see System Setup).
Back panel LEDs
two multi-colored lights provide illumination for the
I/O panel on the back of the computer
NOTE: The color of the back panel LEDs can be
adjusted in system setup (see System Setup).
Power
DC power supply:
CAUTION: To reduce the risk of fire, electric shock,
or injury, do not overload an electrical outlet,
power strip, or convenience receptacle. The total
ampere rating of all products plugged into an
electrical outlet, power strip, or other receptacle
should not exceed 80 percent of the branch circuit
rating.
Wattage
750 W or
1 KW
Voltage (see the safety instructions located in
the Product Information Guide)
auto-sensing power supply—90 V to 265 V at 50/60
Hz
Backup battery
3-V CR2032 lithium coin cell
Physical
Height
Without stand
55.5 cm (21.9 inches)
With stand
57.2 cm (22.5 inches)
Width
Without stand
21.9 cm (8.6 inches)
With stand
35.6 cm (14.0 inches)
Depth
59.4 cm (23.4 inches)
Weight
Typical configuration
21.7 kg (47.8 lb)
Maximum configuration
25.6 kg (56.4 lb)
Environmental
Temperature:
Operating
10°to35°C(50°to95°F)
Storage
–40°to65°C(–40°to149°F)
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