FAQ > Industrial Motherboard
IMBA-G412ISA-R20 - COM#3-port support in BIOS/OS
|IMBA-G412ISA-R20 - COM#3-port support in BIOS/OS|
|COM-port#3 is Disabled in BIOS but still appears in Windows/DOS with yellow-mark but this is not happens with other COM-ports.|
|Update with recent std BIOS version SA28MR14 which has debug about to fix this COM#3 issue.|
“Disable COM1 and COM3 together in old BIOS version itself to fix” if customer don’t use COM1 for their application (or) Disable all COM-ports if application not used any COM-ports.