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Appendix
Connectors
External connectors:
Serial
Parallel
Network adapter
PS/2 (keyboard and mouse)
USB
headphones
System board connectors:
Primary IDE drive
Secondary IDE drive
Floppy drive
Fans (3)
I/O Panel
Serial ATA (2)
Controls and Lights
Power control
Power light
Hard-drive access light
Link integrity light (on integrated
network adapter)
Activity light (on integrated network
adapter)
Diagnostic lights
two 9-pin connectors; 16550C-
compatible
25-hole connector (bidirectional)
10/100/1000 Ethernet connector
6-pin mini-DIN
two front-panel and six back-panel USB
2.0–compliant connectors
one front-panel connector
40-pin connector
40-pin connector
34-pin connector
3-pin connector
34-pin connector
7-pin connector
push button
green light on power button—blinking
green in sleep state; solid green for
power-on state
green
green light for 10-Mb operation; orange
light for 100-Mb operation
yellow blinking light
four lights on the back panel
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