SUPER MICRO Computer X7SBL-LN1/LN2 - Manual (Page 52)

3-2
X7SBL-LN1/LN2 User’s Manual
Check that the 115V/230V switch on the power supply is properly set. 3.
Turn the power switch on and off to test the system. 4.
The battery on your motherboard may be old. Check to verify that it still sup- 5.
plies ~3VDC. If it does not, replace it with a new one.
No Video
If the power is on but you have no video, remove all the add-on cards and 1.
cables.
Use the speaker to determine if any beep codes exist. Refer to Appendix A 2.
for details on beep codes.
Note: If you are a system integrator, VAR or OEM, a POST diagnos-
tics card is recommended. For I/O port 80h codes, refer to App. B.
Memory Errors
Make sure that the DIMM modules are properly and fully installed. 1.
You should be using unbuffered DDR2 memory (see the next page). Also, it 2.
is recommended that you use the same memory speed for all DIMMs in the
system. See Section 2-4 for memory limitations.
Check for bad DIMM modules or slots by swapping modules between slots 3.
and noting the results.
Check the power supply voltage 115V/230V switch. 4.
Losing the System’s Setup Confi guration
Make sure that you are using a high quality power supply. A poor quality 1.
power supply may cause the system to lose the CMOS setup information.
Refer to Section 1-6 for details on recommended power supplies.
The battery on your motherboard may be old. Check to verify that it still sup- 2.
plies ~3VDC. If it does not, replace it with a new one.