Desktop Computer; About Your Desktop Computer; Front View - Dell OptiPlex 755 User Manual

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Desktop Computer
User's Guide
About Your Desktop Computer
Removing the Computer Cover
Inside Your Computer
Chassis Intrusion Switch
Removing the Heat Sink Assembly
System Board Components
About Your Desktop Computer

Front View

1 USB 2.0 Use the front USB connectors for devices that you connect occasionally,
connectors such as joysticks or cameras, or for bootable USB devices (see
(2) Setup for more information about booting to a USB device).
It is recommended that you use the back USB connectors for devices that
typically remain connected, such as printers and keyboards.
2 LAN indicator This light indicates that a LAN (local area network) connection is
light established.
3 power button Press this button to turn on the computer.
NOTICE: To avoid losing data, do not turn off the computer by pressing
the power button. Instead, perform an operating system shutdown. See
Turning Off Your Computer
NOTICE: If your operating system has ACPI enabled, when you press
the power button the computer will perform an operating system
shutdown.
4 Dell badge This badge can be rotated to match the orientation of your computer. To
rotate, place fingers around the outside of the badge, press firmly, and
turn the badge. You can also rotate the badge using the slot provided
near the bottom of the badge.
5 power light The power light illuminates and blinks or remains solid to indicate
different operating states:
No light — The computer is turned off.
l
Steady green — The computer is in a normal operating state.
l
Blinking green — The computer is in a power-saving mode.
l
Blinking or solid amber — See
l
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
XP and Windows
See Diagnostic Lights
troubleshoot problems with your computer.
6 diagnostic Use the lights to help you troubleshoot a computer problem based on the
lights diagnostic code. For more information, see
7 hard drive This light flickers when the hard drive is being accessed.
activity light
for more information.
Power Problems.
Power Management for Windows
Vista.
for a description of light codes that can help you
Diagnostic
System
Lights.