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About Your Computer 41
Power light Front panel:
green light—blinking green in sleep state;
solid green for power-on state
amber light—blinking amber indicates that
an internal power problem might exist; solid
amber indicates that a device may be
malfunctioning or incorrectly installed (see
"Power Problems" on page 116)
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.
Network 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 121)
Standby power light AUX_PWR on the system board
Power
DC power supply
Wattage
875 W
Heat dissipation
1094W or 3732BTU/hour
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
Controls and Lights