Different motherboards have different design ideas, and plus the different underlying BIOS structure designs, the compatibility problems under DOS will be very obvious. There is no universal driver, only the difference between good and bad compatibility.
For example: Currently, the latest dual-core CPU motherboards support complete USB boot, and the USB ports still supply power to the outside after shutdown (the notebook external hard drive is still spinning). Friends who understand the circuit structure design can't understand it. Is this phenomenon normal? (Still a first-class big brand motherboard)