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172 Appendix
Processor
one 775-pin connector
Memory
four 240-pin connectors
Power 12V
one 4-pin connector
Power
one 24-pin connector
Controls and Lights
Front of computer:
Power button
push button
Power light
blue light — Blinking blue in sleep state; solid blue
for power-on state
amber light — The blinking amber indicates a
problem with the system board. A solid amber light
when the system does not boot indicates that the
system board cannot start initialization. This could be
a system board or a power supply problem (see "Power
Problems" on page 74).
Drive activity light
blue light — A blinking blue light indicates the
computer is reading data from or writing data to the
SATA hard drive or CD/DVD.
Rear of computer:
Link integrity light (on
integrated network adapter)
green light — A good connection exists between the
network and the computer.
off (no light) — The computer is not detecting a
physical connection to the network.
Network activity light (on
integrated network adapter)
yellow blinking light
Power
DC power supply:
Wa tta ge
300 W
Maximum heat dissipation
162 W
NOTE: Heat dissipation is calculated by using the
power supply wattage rating.
Connectors
book.book Page 172 Thursday, June 14, 2007 6:23 PM