Dell Dimension E520 Owner's Manual page 111

Connectors
External connectors:
Video
Network adapter
USB
Audio
System board connectors:
Serial ATA
FlexBay Drive
Floppy drive
Fan
PCI 2.3
PCI Express x1
PCI Express x16
Controls and Lights
Power button
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
RJ-45 connector
two front-panel and six back-panel USB 2.0-compliant connectors
six connectors for 7.1 support
four 7-pin connectors
one USB 10-pin header for optional Media Card Reader (3.5-inch
bay device)
one 33-pin connector
one 5-pin connectors
two 120-pin connectors
one 36-pin connector
one 164-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 41).
green
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.
yellow blinking light
four lights on the front panel (see "Diagnostic Lights" on page 47.)
STBYLED on the system board
111
Appendix