Supermicro X11QPL User Manual page 72

Super X11QPL User's Manual
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. (For error beep codes to function
properly, please connect an optional external speaker/buzzer to the onboard speaker
header located at JD1.) Refer to Appendix A for details on beep codes.
System Boot Failure
If the system does not display POST (Power-On-Self-Test) or does not respond
after the power is turned on, check the following:
1. Check for any error beep from the motherboard speaker. (For error beep codes to
function properly, please connect an optional external speaker/buzzer to the onboard
speaker header located at JD1.)
2. Confirm that you are using the correct memory. Also, it is recommended that you use
the same memory type and speed for all DIMMs in the system. See Section 2.4 for
memory details.
3. Check for bad DIMM modules or slots by swapping modules between slots and noting
the results.
4. Check the power supply voltage 115V/230V switch.
Losing the System's Setup Configuration
1. Make sure that you are using a high quality power supply. A poor quality power supply
may cause the system to lose the CMOS setup information. Refer to Section 1.5 for
details on recommended power supplies.
2. 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.
3. If the above steps do not fix the setup configuration problem, contact your vendor for
repairs.
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