X9DR3_i-LN4F+ 1.1.indb - Supermicro
X9DR3_i-LN4F+ 1.1.indb - Supermicro
X9DR3_i-LN4F+ 1.1.indb - Supermicro
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<strong>X9DR3</strong>-<strong>LN4F+</strong>/X9DRi-<strong>LN4F+</strong> Motherboard User’s Manual<br />
No Video<br />
1. If the power is on, but you have no video, remove all add-on cards and<br />
cables.<br />
2. Use the speaker to determine if any beep codes exist. Refer to Appendix A<br />
for details on beep codes.<br />
System Boot Failure<br />
If the system does not display POST or does not respond after the power is turned<br />
on, check the following:<br />
1. Check for any error beeps from the motherboard speaker.<br />
• If there is no error beep, try to turn on the system without any DIMM module<br />
installed. If there is still no error beep, try to turn on the system again with only<br />
one processor installed in CPU Socket#1. If there is still no error beep, replace<br />
the motherboard.<br />
• If there are error beeps, clear the CMOS setting by unplugging the power cord<br />
and contacting both pads on the CMOS Clear Jumper (JBT1). (Refer to Section<br />
2-8 in Chapter 2.)<br />
2. Remove all components from the motherboard, especially the DIMM modules.<br />
Make sure that the system's power is on, and memory error beeps are<br />
activated.<br />
3. Turn on the system with only one DIMM module installed. If the system boots,<br />
check for bad DIMM modules or slots by following the procedure of memory-<br />
error troubleshooting in this chapter.<br />
Losing the System’s Setup Configuration<br />
1. Make sure that you are using a high quality power supply. A poor quality<br />
power supply may cause the system to lose the CMOS setup information.<br />
Refer to Section 1-6 for details on recommended power supplies.<br />
2. The battery on your motherboard may be old. Check to verify that it still supplies<br />
~3VDC. If it does not, replace it with a new one.<br />
3. If the steps indicated above do not fix setup configuration problems, contact<br />
your vendor for repairs.<br />
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