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98 Desktop Computer
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5 power light The power light illuminates and blinks or remains solid to indicate different
operating states:
• No light — The computer is turned off.
• Steady green — The computer is in a normal operating state.
• Blinking green — The computer is in a power-saving mode.
• Blinking or solid amber — See "Power Problems" on page 321.
To exit from a power-saving mode, 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 modes and exiting from a power-saving mode, see
"Power Management
" on page 267.
See "System Lights" on page 329 for a description of light codes that can help you
troubleshoot problems with your computer.
6 diagnostic lights Use the lights to help you troubleshoot a computer problem based on the
diagnostic code. For more information, see "Diagnostic Lights" on page 330.
7 hard-drive activity light This light flickers when the hard drive is being accessed.
8 headphone connector Use the headphone connector to attach headphones and most kinds of speakers.
9 microphone connector Use the microphone connector to attach a microphone.
10 floppy drive Insert a floppy disk into this drive.
11 optical drive Insert media (if supported) into this drive.
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2 3 4
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1 card slots Access connectors for any installed PCI and PCI Express cards.
2 back-panel connectors Plug serial, USB, and other devices into the appropriate connectors (see "Back-
Panel Connectors" on page 99).
3 power connector Insert the power cable.