Frequently Asked Questions - Supermicro A3SEV-2C-LN4 User Manual

Super A3SEV-2C/4C-LN4 User's Manual

3.3 Frequently Asked Questions

Question: What type of memory does my motherboard support?
Answer: The motherboard supports up to 32GB DDR4 SO-DIMM with speeds of up to
3200MHz. See Section 2.3 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 files are located on our website at
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 file to your computer. Also, check the current
BIOS revision to make sure that it is newer than your BIOS before downloading.
Follow the steps below to update the BIOS:
1. Save this BIOS update package to your computer.
2. Extract the files to a USB stick. The USB stick doesn't have to be bootable, but it has to
be formatted with the FAT/FAT32 file system.
3. Plug the USB stick into a USB port, boot to the Build-In UEFI Shell, and type FLASH.
nsh BIOSname#.### to start the BIOS update:
•
Shell> fs0:
•
fs0:\> flash.nsh A3SEV#.###
4. Do not interrupt the process until the BIOS update is complete.
5. When a message indicates that the BIOS update is complete, do the A/C power cycle.
6. Go to the BIOS setup screen and press F3 to load the default and then press F4 to
save and exit.
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 first 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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