Solving Problems 167
•Messages stating that the computer is not operating at maximum
performance.
•While running Microsoft Windows, the computer switches to Safe
Mode.
•Errors and crashes of applications for no apparent reason.
•Nothing displays on the video monitor.
To resolve hardware conflicts:
•Ensure that the conflict is not a software problem.
•Remove any newly added hardware and contact the hardware
manufacturer.
•See your OS documentation.
System Memory Problems
During POST, the computer checks the computer's memory, determines the
amount of installed memory, and then writes to and reads from the number
of available bytes to ensure proper operation.
NOTE: If you installed up to 4 GB of memory but not all of it is available for
use by the OS, see "Addressing Memory with 4-GB Configurations."
Basic Checks:
•Check the diagnostic lights to see if the specific problem is identified.
•If an insufficient memory message appears, save and close any open
files and exit any open application programs not in use. Consider
installing additional system memory.
•Restart the computer.
•Run the System Memory test group in the Dell Diagnostics.
•If you have the optional memory riser boards installed, reseat the riser
boards.
•Reseat the memory modules in system board or riser board sockets.
•If you are not using the optional memory riser boards, verify that all
system board memory sockets contain a RIMM or CRIMM.