4

power light

The power light illuminates and blinks or remains solid to indicate different 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 yellow — 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 "System Lights" on page 345 for a description of light codes that can help you

 

 

troubleshoot problems with your computer.

5

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" on page 21 for more information.

6

vents

The vents help prevent your computer from overheating. To ensure proper ventilation,

 

 

do not block these cooling vents.

7

module bay

Install a D-module optical drive, second hard drive, or floppy drive in the module bay.

8

hard drive access light

The hard drive access light is on when the computer reads data from or writes data to

 

 

the hard drive. The light might also be on when devices such as your CD player are

 

 

operating.

9

vents

The vents help prevent your computer from overheating. To ensure proper ventilation,

 

 

do not block these cooling vents.

Side View

1

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

vents

The vents located on each side of the computer help prevent your computer from

 

 

overheating. To ensure proper ventilation, do not block these cooling vents.

2

mounting

For mounting optional stand.

 

holes

 

228

Ultra Small Form Factor Computer

Page 228
Image 228
Dell 755 Side View, 228, Blinking or solid yellow See Power Problems on, Management for Windows XP and Windows Vista on