SUPER MICRO Computer P4SCT - 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 refer to the section regarding ‘Re-
turning Merchandise for Service in this chapter. Always disconnect the AC
power cord before adding, changing or installing any hardware compo-
nents.
Before Power On
1. Check that the +5v standby LED is not lit (LE2 on motherboard).
2. Make sure the 4-pin 12v power connector at J21 is connected to your
power supply.
3. Make sure 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 it is fully seated) and connect
the chassis speaker and the power LED to the motherboard. Check
all jumper settings as well.
No Power
1. Make sure 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.
*Warning: Do not use a wrong type of onboard CMOS battery or
install the battery upside down to avoid possible explosion.
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.
3. There is no vedio display if the process of ECC Memory initialialization
is not completed. (Refer to the note on Page 3-2).