SUPER MICRO Computer Super H8QM3-2 - Manual (Page 43)

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 main ATX power connector at J1B1 and the 8-pin connectors
at JPW1 and JPW2 are all connected to your power supply.
2. Make sure that no short circuits exist between the serverboard and chassis.
3. Disconnect all ribbon/wire cables from the serverboard, including those for the
keyboard and mouse.
4. Remove all add-on cards.
5. Install CPUs and heatsinks (making sure they are fully seated) and connect
the internal (chassis) speaker and the power LED to the serverboard. Check all
jumper settings as well.
6. Use the correct type of onboard CMOS battery as recommended by the manufac-
turer. To avoid possible explosion, do not install the CMOS battery upside down.
No Power
1. Make sure that no short circuits exist between the serverboard and the chas-
sis.
2. Verify that all jumpers are set to their default positions.
3. Check that the 115V/230V switch on the power supply is properly set.
4. Turn the power switch on and off to test the system.
5. The battery on your serverboard may be old. Check to verify that it still supplies
~3VDC. If it does not, replace it with a new one.
No Video
1. If the power is on but you have no video, remove all the add-on cards and
cables.
2. Use the speaker to determine if any beep codes exist. Refer to Appendix A for
details on beep codes.