User`s guide

Blinking green — The computer is in a power-saving state (S1 or S3)
To exit from a power-saving state, press the power button or click or move the mouse.
See "Diagnostic Lights
" for a description of light codes that can help you troubleshoot problems
with your computer.
6 front-panel door Open the door to use the front-panel connectors. The front-panel door is removable; if you remove
it or accidentally knock it off its hinges, it snaps back in place.
7 service tag The tag is used to identify your computer when you access the Dell | Support website or call
technical support.
8 USB connectors Connect USB devices such as a mouse, keyboard, printer, joystick, and computer speakers into
any of the USB connectors.
9 headphone
connector
Attach headphones.
10 Microsoft®
Windows® license
label
The Windows license label provides the product key for your copy of the Windows operating
system. You need this information if you reinstall Windows.
Back View
Small Mini-Tower Computer
1 power connector The connection for the power cable.
2 voltage selection
switch (may not be
available on all
Your computer is equipped with either an auto-sensing voltage selector or a manual voltage
selection switch. Computers with an auto-sensing voltage selector do not have a voltage selection
switch on the back panel and can automatically detect the correct operating voltage.