Back View (Tower Orientation)
Back Panel Connectors
¡ No light — The computer is turned off or in a hibernation
mode.
¡ Steady green — The computer is in a normal operating
state.
¡ Blinking green — The computer is in a power-saving state.
¡ Blinking or solid amber — See Power Problems.
To exit from a power-saving state, press the power button or use the
keyboard or the mouse if it is configured as a wake device in the
Windows Device Manager. For more information about sleep states and
exiting from a power-saving state, see Power Management.
See Diagnostic Lights for a description of light codes that can help you
troubleshoot problems with your computer.
Use the headphone connector to attach headphones.
Use the microphone connector to attach a personal computer
microphone for voice or musical input into a sound or telephony
program.
The network link light is on when a good connection exists between a
10-Mbps, 100-Mbps, or 1000-Mbps (or 1-Gbps) network and the
computer.
Use these lights to help you troubleshoot a computer problem based on
the diagnostic code. For more information, see Diagnostic Lights.
Access connectors for any installed PCI, PCI-X, or PCI Express cards.
NOTE: The center four slots support full-length cards: one PCI-X slot, one
PCI Express x8 slot (wired as x4), one PCI Express x16 slot, and one PCI
slot); and the top and bottom slots support half-length cards: one PCI-X
slot and one PCI Express x8 slot (wired as x4).
Plug serial, USB, and other devices into the appropriate connector (see
Back Panel Connectors).
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