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Chapter 7: Troubleshooting and Support
Before Power On
1. Check that the BMC Heartbeat (LED1) is blinking before the motherboard is turned on.
2. Check that the Onboard Power OK (LED7) on the motherboard is on.
3. Make sure that the power connector is connected to your power supply.
4. Make sure that no short circuits exist between the motherboard and chassis.
5. Disconnect all cables from the motherboard, including those for the keyboard and mouse.
6. Remove all add-on cards.
7.
settings properly. *Make sure that the heatsink is fully seated.
8. Use the correct type of onboard CMOS battery (CR2032) as recommended by the
manufacturer. To avoid possible explosion, do not install the CMOS battery upside down.
No Power
1. Make sure that no short circuits exist between the motherboard and the chassis.
2.
3. Check that the 115V/230V switch on the power supply is properly set.
4.
5. The CMOS battery on your motherboard may be old. Check to verify that it still supplies
approximately 3VDC. If it does not, replace it with a new one.
No Video
1. Check that the VGA cable is connected properly, and the monitor is on.
2. Check if you follow the guidelines to install the memory module (see DIMM Module
Population in chapter 2).
3. Reseat the memory DIMM modules.
Note: If you are a system integrator, VAR or OEM, a POST diagnostics card is recommended.
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