Back View - Dell OptiPlex 755 User Manual

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power light
8 headphone connector
9 microphone connector
10
3.5-inch drive bay
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5.25-inch drive bay

Back View

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1
card slots
2
back panel connectors
3 power connector
166
Small Form Factor Computer
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 339.
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 for Windows XP and Windows Vista" on page 292.
See "Dell Diagnostics" on page 353 for a description of light codes that can help
you troubleshoot problems with your computer.
Use the headphone connector to attach headphones and most kinds of speakers.
Use the microphone connector to attach a microphone.
Can contain an optional slimline floppy drive or optional media card reader.
Can contain a slimline optical drive. Insert a CD or DVD (if supported) into this
drive.
2
Access connectors for any installed PCI cards, PCI Express cards, PS/2, eSATA,
and so on.
Plug serial, USB, and other devices into the appropriate connectors (see "Back
Panel Connectors" on page 167).
Insert the power cable.
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