Dell 755 manual Side View, 228, Blinking or solid yellow See Power Problems on

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