Dell Precision R5400 (Mid 2008) - Manual (Page 46)

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Troubleshooting
I F THE POWER LIGHT IS STEADY AMBER — 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 on the Dell Support
website 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 on the
Dell Support website at support.dell.com).
E LIMINATE INTERFERENCE — 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, read and follow
the safety instructions provided with your computer.
I F YOU RECEIVE AN INSUFFICIENT MEMORY MESSAGE —
• 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 on the Dell
Support website at support.dell.com).
• Reseat the memory modules (see your Service Manual on the Dell
Support website at support.dell.com) to ensure that your computer is
successfully communicating with the memory.
• Run the Dell Diagnostics (see "Dell Diagnostics" on page 39).
I F YOU EXPERIENCE OTHER MEMORY PROBLEMS —
• Reseat the memory modules (see your Service Manual on the Dell
Support website 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 on the Dell Support website at support.dell.com).