When The System Becomes Unstable - Supermicro X11DPFF-SNR User Manual

When the System Becomes Unstable

A. If the system becomes unstable during or after OS installation, check the following:
1. CPU/UEFI BIOS support: Make sure that your CPU is supported and that you have the
latest UEFI BIOS installed in your system.
2. Memory support: Make sure that the memory modules are supported by testing the
modules using memtest86 or a similar utility.
Note: Refer to the product page on our website at
memory and CPU support and updates.
3. HDD support: Make sure that all hard disk drives (HDDs) work properly. Replace the
bad HDDs with good ones.
4. System cooling: Check the system cooling to make sure that all heatsink fans and CPU/
system fans, etc., work properly. Check the hardware monitoring settings in the IPMI
to make sure that the CPU and system temperatures are within the normal range. Also
check the front panel Overheat LED and make sure that it is not on.
5. 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 configuration requirements.
6. 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.
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.
4. Identifying bad components by isolating them: If necessary, remove a component in
question from the chassis, and test it in isolation to make sure that it works properly.
Replace a bad component with a good one.
5. Check and change one component at a time instead of changing several items at the
same time. This will help isolate and identify the problem.
6. To find out if a component is good, swap this component with a new one to see if the
system will work properly. If so, then the old component is bad. You can also install the
Chapter 3: Troubleshooting
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