SUPER MICRO Computer MICRO COMPUTER MOTHERBOARD P8SC8 - Manual (Page 47)

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. Check that the +5v standby LED is lit (LE2 on motherboard).
2. Make sure that the 4-pin 12v power connector at J2 is connected to
your power supply.
3. Make sure that no short circuits exist between the motherboard and
chassis.
4. Disconnect all ribbon/wire cables from the motherboard, including those
for the keyboard and mouse.
5. Remove all add-on cards.
6. Install a CPU and heatsink (making sure that it is fully seated) and
connect the chassis speaker and the power LED to the motherboard.
Check all jumper settings as well.
7. Use the correct type of onboard CMOS battery as recommended by
the Manufacturer. Do not install the CMOS battery upside down to
avoid possible explosion.
No Power
1. Make sure that no short circuits exist between the motherboard and
the chassis.
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 motherboard 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.