•Reseat the memory modules (see your Service Manual at support.dell.com) to ensure that your computer is successfully communicating with the memory.
•Run the Dell Diagnostics (see "Dell Diagnostics" on page 40).
I F Y O U E X P E R I E N C E O T H E R M E M O R Y P R O B L E M S —
•Reseat the memory modules (see your Service Manual at support.dell.com) to ensure that your computer is successfully communicating with the memory.
•Ensure that you are following the memory installation guidelines (see your Service Manual at support.dell.com).
•Ensure that the memory you are using is supported by your computer. For more information about the type of memory supported by your computer, see "Memory" on page 22.
•Run the Dell Diagnostics (see "Dell Diagnostics" on page 40).
Lockups and Software Problems
CAUTION: Before you begin any of the procedures in this section, follow the safety information that shipped with your computer.
The computer does not start up
E N S U R E T H A T T H E P O W E R C A B L E I S F I R M L Y C O N N E C T E D T O T H E C O M P U T E R A N D T O T H E E L E C T R I C A L O U T L E T
The computer stops responding
NOTICE: You may lose data if you are unable to perform an operating system shutdown.
TU R N T H E C O M P U T E R O F F — If you are unable to get a response by pressing a key on your keyboard or moving your mouse, press and hold the power button for at least 8 to 10 seconds (until the computer turns off), and then restart your computer.
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