Dell Dimension 3100 Owner's Manual page 103

Connectors
External connectors:
Video
Network adapter
USB
Audio
System board connectors:
Primary IDE drive
Serial ATA
FlexBay Drive
Fan
PCI 2.3
PCI Express x1
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
Standby power light
15-hole connector
RJ45 connector
two front-panel and four back-panel USB 2.0-compliant connectors
three connectors for line-in, line-out, and microphone; one front-
panel connector for headphones
40-pin connector on PCI local bus
two 7-pin connectors
USB 10-pin header for optional floppy drive or optional Media
Card Reader (3.5-inch bay devices)
one 5-pin connector
two 120-pin connectors
36-pin connector
push button
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 40).
green
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.
yellow blinking light
four lights on the front panel (see "Diagnostic Lights" on page 47.)
AUX_PWR on the system board
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Appendix