Dell OptiPlex GX745 User'smanual page 175

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
See System Lights
troubleshoot problems with your computer.
8 hard-drive This light flickers when the hard drive is being accessed.
activity light
9 headphone Use the headphone connector to attach headphones and most kinds of
connector speakers.
10 microphone Use the microphone connector to attach a microphone.
connector
Back View
1 cover-release This latch allows you to open the computer cover.
latch
2 padlock ring Insert a padlock to lock the computer cover.
3 voltage Your computer is equipped with a manual voltage-selection switch. To
selection help avoid damaging a computer with a manual voltage-selection switch,
switch set the switch for the voltage that most closely matches the AC power
available in your location.
NOTICE:
115-V position.
Also, ensure that your monitor and attached devices are electrically rated
to operate with the AC power available in your location.
4 power Insert the power cable.
connector
5 back-panel Plug serial, USB, and other devices into the appropriate connectors. See
connectors Back-Panel Connectors.
6 card slots Access connectors for any installed PCI and PCI Express cards.
Back-Panel Connectors
Power Problems.
Power Management.
for a description of light codes that can help you
In Japan, the voltage selection switch must be set to the