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About Your System 13
2 NMI button Used to troubleshoot software and
device driver errors when using certain
operating systems. This button can be
pressed using the end of a paper clip.
Use this button only if directed to do so
by qualified support personnel or by the
operating system's documentation.
3 Video connector Connects a monitor to the system.
4 Hard-drive activity
indicator
Lights up when the hard drive is in use.
5 LED or LCD panel
NOTE: Depending on the configuration,
your system may have either LED
diagnostic indicators or an LCD panel.
LED panel: The four diagnostic
indicator lights display error codes
during system startup. See "Diagnostic
Lights (Optional)" on page 23.
LCD panel: Provides system ID, status
information, and system error messages.
For more information on the LCD
panel, see "LCD Panel Features
(Optional)" on page 14.
NOTE: If the system is connected to
AC power and an error has been
detected, the LCD lights amber
regardless of whether the system
has been powered on.
Item Indicator, Button, or
Connector
Icon Description
R310HOM.book Page 13 Thursday, March 4, 2010 1:03 AM