106 Appendix
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Controls and Lights
Power control push button
Power light green light — Blinking green in sleep state; solid green for power-on 
state.
amber light — Blinking amber indicates a problem with the power 
supply inside the computer. If the system cannot boot and there is a 
solid amber light, this indicates a problem with the system board 
(see "Power Problems" on page 39).
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 light — Blinking indicates activity on the network.
Diagnostic lights four lights on the front panel (see "Diagnostic Lights" on page 45.)
Standby power light AUXPWR on the system board
Power
DC power supply:
Wattage 375 W
Heat dissipation 1280 BTU/hr
Voltage (See the safety instructions 
in the 
Product Information Guide 
for important voltage setting 
information.)
90 to 135 V and 180 to 265 V at 50/60 Hz
Backup battery 3-V CR2032 lithium coin cell
Physical
Height
44.45 cm (17.5 inches) 
Width
16.764 cm (6.6 inches)
Depth
44.45 cm (17.5 inches)
Weight
12.7 kg (28 lb)