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Chapter 7: Troubleshooting and Support
7.3 Troubleshooting Procedures
Use the following procedures to troubleshoot your system. If you have followed all of the
procedures below and still need assistance, refer to the
or
Returning Merchandise for Service
section(s) in this chapter.
the system before
changing any non-hot-swap hardware components.
General Technique
If you experience unstable operation or get no boot response, try:
1.
With power off, remove all but one DIMM and other added components, such as add-on
cards, from the motherboard. Make sure the motherboard is not shorted to the chassis.
2. Set all jumpers to their default positions.
3. Power up. If the system boots, check for memory errors and add-on card problems.
No Power to the System
•
Check that the power LED on the motherboard is on.
•
Make sure AC power is being supplied to the power supply.
•
Use a voltmeter to check that the motherboard battery still supplies ~3VDC. If it does not,
replace it. Remove the power cord from the system.
•
Check that the power cord is plugged into a power outlet that supplies 100-120V or 180-
240V.
•
Turn the power switch on and off to test the system.
No Video
If the power is on but you have no video, remove all add-on cards and cables.
System Boot Failure
If the system does not display Power-On-Self-Test (POST) or does not respond after the
power is turned on, try the following:
•
Turn on the system with only one DIMM module installed. If the system boots, check for bad
DIMM modules or slots by following the Memory Errors Troubleshooting procedure below.
Memory Errors
•
Make sure that the DIMM modules are properly and fully installed.