Sometimes if something is wrong with that drive the startup will be delayed. However there is a known problem with NT if your computer has one or more IDE disks and one or more SCSI disks which results in a pause of around 30 seconds. The problem is due to the detection code used by NT and is currently being investigated by Microsoft. The idea behind USB is that it will be plug and play, and as devices are connected they will automatically be detected and installed. Windows NT 4.0 does not provide built in USB support, you will need to wait for Windows NT 5.0 or switch to Windows 98.
Some boxes convert the USB devices into serial ports.
However, Our AMI BIOS support Legacy USB devices such as USB Keyboard and USB mouse. Updates to the Resource Kit tools are available from Microsoft Reskit. I want to use Windows NT on a dual processor motherboard. Yes, Windows NT detects the capabilities of your motherboard and system. If you install Windows NT with two CPUs, the operating system will install flawlessly.