The immediate problem is likely that NT4 does not support SATA drives, being developed years after the OS was released. You can probably solve that problem. But the real problem, and a major one, is that NT4 is going to lack drivers for virtually everything in that computer. Considering that NT4 was released almost 15 years ago and has a very small user base the likelyhood of finding these drivers is just about zero.
I think you should give up on the idea. If you really want to run NT4 install it on a virtual machine such as VirtualPC or VirtualBox.
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