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About Your Computer 33
Hard-drive access light Front panel:
green light—on when the computer reads
data from or writes data to the hard drive; the
light may also be on when a device such as
the optical drive is operating
Link integrity lights Back panel: green light for 10-Mb operation;
orange light for 100-Mb operation; yellow
light for a 1000-Mb (1-Gb) operation
Front panel: displays solid green when a
network connection is present
Activity light Back panel: yellow blinking light when there
is network activity
Diagnostic lights Front panel: four lights (see "Diagnostic
Lights" on page 105)
Standby power light System AUX_PWR on the system board
Power
DC power supply
Wattage
1000 W
Heat dissipation
1250W or 4265 BTU/hour (system with
power supply)
NOTE: Heat dissipation is calculated based
upon the power supply wattage rating.
Voltage
auto-sensing power supply—90 V to 265 V
at 50/60 Hz
Backup battery 3-V CR2032 lithium coin cell
Physical
Height 22.3 in (56.6 cm)
Width
With stand:
12.8 in (32.5 cm)
Without stand:
8.5 in (21.6 cm)
Depth 21.2 in (53.8 cm)
Controls and Lights