About Your Computer 27
8 power light The power light illuminates and blinks or remains solid
to indicate different states:
• No light — The computer is turned off (S4, S5, or
mechanical OFF).
• Steady green — The computer is in a normal
operating state.
• Blinking green — The computer is in a power-
saving state (S1 or S3).
• Blinking or solid amber — See "Power Problems" on
page 123.
To exit from a power-saving state, press the power
button or use the keyboard or 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" on
page 40.
For a description of diagnostic light codes for
troubleshooting problems with your computer, see
"Diagnostic Lights" on page 100.
9 diagnostic lights (4) Use the diagnostic lights to help you troubleshoot a
problem with your computer (see "Diagnostic Lights"
on page 100).
10 microphone
connector
Use the microphone connector to attach a personal
computer microphone for voice or musical input into a
sound or telephony program.
11 headphone connector Use the headphone connector to attach headphones.
12 network link light 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.
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