Losing The System's Setup Configuration; When The System Becomes Unstable - Supermicro X11SSN-H/-E/-L User Manual

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.

When the System Becomes Unstable

A. If the system becomes unstable during or after OS installation, check the following:
1. Memory support: Make sure that the memory modules are supported by testing the
modules using memtest86 or a similar utility.
Note: Click on the Tested Memory List link on the motherboard product page to see
a list of supported memory.
2. HDD support: Make sure that all hard disk drives (HDDs) work properly. Replace the
bad HDDs with good ones.
3. Heatsink: Check that the heatsink is installed properly.
4. Adequate power supply: Make sure that the power supply provides adequate power to
the system. Make sure that all power connectors are connected. Please refer to our
website for more information on the minimum power requirements.
5. Proper software support: Make sure that the correct drivers are used.
B. If the system becomes unstable before or during OS installation, check the following:
1. Source of installation: Make sure that the devices used for installation are working
properly, including boot devices such as CD/DVD and CD/DVD-ROM.
2. Cable connection: Check to make sure that all cables are connected and working
properly.
3. Using the minimum configuration for troubleshooting: Remove all unnecessary
components (starting with add-on cards first), and use the minimum configuration (but
with a CPU and a memory module installed) to identify the trouble areas. Refer to the
steps listed in Section A above for proper troubleshooting procedures.
Chapter 3: Troubleshooting
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