Frequently Asked Questions - Supermicro H13DSG-OM User Manual

Chapter 3: Troubleshooting

3.3 Frequently Asked Questions

Question: What type of memory does my motherboard support?
Answer: The H13DSG-OM motherboard supports up to 256 GB of ECC DDR5 4800 MT/s
speed, RDIMM/3DS DIMM modules in twenty-four slots. 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 files are located on our website at http://www.
supermicro.com.
Check the BIOS warning message and 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. Download the zip file and save the BIOS package to your computer. If you
choose the zip BIOS file, unzip the BIOS file onto a bootable USB device. Run the batch file
using the format FLASH.BAT filename.rom from your bootable USB device to flash 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 by the Power Button Mode setting in
BIOS . 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 4 Seconds Override 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 shutdown the system. This feature is required to implement the
ACPI features on the motherboard.
44