Dell Latitude E6400 - Manual (Page 43)

Troubleshooting 43
I F T H E P O W ER L I G H T I S B L U E A N D T H E C O M P U T E R I S N O T R E S P O N D I N G —
• Ensure that the display is connected and powered on.
• If the display is connected and powered on, see "Beep Codes" on page 31.
I F T H E P O W ER L I G H T I S B L I N K I N G B L U E — The computer is in standby mode.
Press a key on the keyboard, move the mouse, or press the power button to
resume normal operation.
I F T H E P O W ER L I G H T I S B L I N K I N G A M B E R — The computer is receiving
electrical power, a device might be malfunctioning or incorrectly installed.
• Remove and then reinstall all memory modules (see your Service Manual
at support.dell.com).
• Remove and then reinstall any expansion cards, including graphics cards
(see your Service Manual at support.dell.com).
I F T H E P O W ER L I G H T I S ST E A D Y A MB E R — There is a power problem, a device
may be malfunctioning or incorrectly installed.
• Ensure that the processor power cable is securely connected to the system
board power connector (see your Service Manual at support.dell.com).
• Ensure that the main power cable and the front panel cable are securely
connected to the system board connector (see your Service Manual at
support.dell.com).
E L I M I N A T E I N T E RF E R E N CE — Some possible causes of interference are:
• Power, keyboard, and mouse extension cables
• Too many devices connected to the same power strip
• Multiple power strips connected to the same electrical outlet
Memory Problems
CAUTION: Before you begin any of the procedures in this section, follow the
safety information that shipped with your computer.
I F YO U R E CE I VE A N I N S U F F I C I E N T ME M O R Y M E S S A G E —
• Save and close any open files and exit any open programs you are not using
to see if that resolves the problem.
• See the software documentation for minimum memory requirements. If
necessary, install additional memory (see your Service Manual at
support.dell.com).