System Boot Failure; Memory Errors; Losing The System's Setup Configuration - Supermicro X13SEFR-A User Manual

System Boot Failure

If the system does not display Power-On-Self-Test (POST) or does not respond after the
power is turned on, do the following:
1. Check the screen for an error message.
2. Clear the CMOS settings by unplugging the power cord and contacting both pads on the
CMOS clear jumper (JBT1). Restart the system. Refer to Section 2-8 in Chapter 2.
3. Remove all components from the motherboard and turn on the system with only one
DIMM module installed. If the system boots, turn off the system and repopulate the
components back into the system to retest. Add one component at a time to isolate
which one may have caused the system boot issue.

Memory Errors

When suspecting faulty memory is causing the system issue, check the following:
1. Make sure that the memory modules are compatible with the system and are properly
installed. See Chapter 2 for installation instructions. (For memory compatibility, refer
to the "Tested Memory List" link on the motherboard's product page to see a list of
supported memory.)
2. Check if different speeds of DIMMs have been installed. It is strongly recommended that
you use the same RAM type and speed for all DIMMs in the system.
3. Make sure that you are using the correct type of ECC DDR5 modules recommended by
the manufacturer.
4. Check for bad DIMM modules or slots by swapping a single module among all memory
slots and check the results.

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 Chapter 2 for
details on recommended power supplies.
2. The battery on your motherboard may be old. Check to verify that it still supplies
approximately 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.
Chapter 3: Troubleshooting
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