Chapter 3: Troubleshooting
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3.3 Frequently Asked Questions
Question: What type of memory does my motherboard support?
Answer: The A2SDi-2C/4C/8C/8C+/12C/16C-HLN4F motherboard supports both DDR4 ECC/
Non-ECC UDIMM and RDIMM at up to 2400MT/s. See Section 2.4 for details on installing
memory.
Question: How do I update my BIOS?
Answer: It is recommended that you do not upgrade your BIOS if you are not experiencing
any problems with your system. Updated BIOS les are located on our website at http://
www.supermicro.com/ResourceApps/BIOS_IPMI_Intel.html. Please check our BIOS warning
message and the information on how to update your BIOS on our website. Select your
motherboard model and download the BIOS le to your computer. Also, check the current
BIOS revision to make sure that it is newer than your BIOS before downloading. You can
choose from the zip le and the .exe le. If you choose the zip BIOS le, please unzip the
BIOS le onto a bootable USB device in the UEFI shell. Run the batch le using the format
FLASH.NSH lename.rom from your bootable USB device in the UEFI shell to ash the BIOS.
Then, your system will automatically reboot.
Question: Why can't I turn off the power using the momentary power on/off switch?
Answer: The instant power off function is controlled in BIOS by the Power Button Mode
setting. When the On/Off feature is enabled, the motherboard will have instant off capabilities
as long as the BIOS has control of the system. When the Standby or Suspend feature is
enabled or when the BIOS is not in control such as during memory count (the rst screen
that appears when the system is turned on), the momentary on/off switch must be held for
more than four seconds to shut down the system. This feature is required to implement the
ACPI features on the motherboard.
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