No Video; System Boot Failure; Memory Errors; The System Cannot Retain The Setup Configuration - Supermicro AS-8125GS-TNHR User Manual

No Video

1. Check that the VGA cable is connected properly, and the monitor is on.
2. Check if you follow the guidelines to install the memory module (see DIMM Module
Population in Chapter
3. Reseat the memory DIMM module.
Note: If you are a system integrator, VAR or OEM, a POST diagnostics card is recommended.

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. Clear the CMOS settings by unplugging the power cord and contacting both pads on the
CMOS Clear Jumper (JBT1).
2. Remove all components from the motherboard, especially the DIMM modules.
3. Turn on the system with only one DIMM module installed. If the system boots, check for
bad DIMM modules or slots by following the Memory Errors Troubleshooting procedure in
this chapter.

Memory Errors

1. Make sure that the DIMM modules are properly and fully installed.
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
details.
3. Check for bad DIMM modules or slots by swapping modules between slots and noting the
results.
4. Check the power supply voltage 115 V/230 V switch.

The System Cannot Retain the Setup Configuration

1. Make sure that you are using a high-quality power supply. Always replace power supplies
with the exact same model that came with the system. A poor quality power supply may
cause the system to lose the CMOS setup configuration.
2. The battery on your motherboard may be old. Check to verify that it still supplies
approximately 3 VDC. If it does not, replace it with a new one.
3).
74
Chapter 7: Troubleshooting and Support
Section 3.4 for memory