(which is mostly theoretical, clocking a 486 at 4.77MHz, while not necessarily impossible, might turn out to be quite a project on consumer hardware).
Quite a project indeed, but possible with the right motherboard -- as an amusing side note, there is a very strange sub-sub-sub-genre of computer enthusiasts who enjoy the challenge of installing various Windows versions on the slowest possible systems that will run them:
They've managed feats like running Windows XP on a 4 MHz Pentium Overdrive and Windows ME on a 3 MHz 486SL (that one takes 1 hour and 10 minutes to even boot)
Quite a project indeed, but possible with the right motherboard -- as an amusing side note, there is a very strange sub-sub-sub-genre of computer enthusiasts who enjoy the challenge of installing various Windows versions on the slowest possible systems that will run them:
https://www.winhistory.de/more/386/winq.htm
They've managed feats like running Windows XP on a 4 MHz Pentium Overdrive and Windows ME on a 3 MHz 486SL (that one takes 1 hour and 10 minutes to even boot)