3-1
Chapter 3: Troubleshooting
Chapter 3
Troubleshooting
3-1 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
‘Technical Support Procedures’ and/or ‘Returning Merchandise for Service’
section(s) in this chapter. Always disconnect the AC power cord before
adding, changing or installing any hardware components.
Before Power On
1. Make sure that the Standby PWR LED is not on. (Note: If it is on,
the onboard power is on. Be sure to unplug the power cable before
installing or removing the components.)
2. Make sure that there are no short circuits between the motherboard
and chassis.
3. Disconnect all ribbon/wire cables from the motherboard, including
those for the keyboard and mouse. Also, be sure to remove all add-
on cards.
4. Install a CPU and heatsink (be sure that it is fully seated) and then
connect the chassis speaker and the power LED to the mother-
board. Check all jumper settings as well.
No Power
1. Make sure that there are no short circuits between the motherboard
and chassis.
2. Make sure that all jumpers are set to their default positions.
3. Check if the 115V/230V switch on the power supply is properly set.
4. Turn the power switch on and off to test the system.
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