OK did that, hasn't made any difference to speed.
I think I have some other memory somewhere, I'll give that a go...

Video and main bios now shadowed! Didn't make a difference to the Norton benchmark but I guess it'll speed up games and things.

I have tried some different memory, couldn't get it to boot at all and I've none else to try.

Perhaps I will just have to settle for a 286 that runs a low slower than it should. At least it works I guess.

normal dos programs should feel less sluggish with the bios shadow enabled.
Have you cleaned up the keyboard connector ? 😀
With the board running, try to get the bios in a file and uploaded here. One never knows when it might come be handy.

I wouldn't know how to do that!
Keyboard connector still the same. I'm fiddling with windows drivers 😀

Mouldotron wrote on 2021-03-15, 20:37:

I wouldn't know how to do that!
Keyboard connector still the same. I'm fiddling with windows drivers 😀

maybe some other good soul will drop by and tell you which programs to use and where to find'm to get the bios copied.

😁 have fun

From another thread:
Give GETROM a try, it's a DOS utility used to extract BIOS images.
http://cd.textfiles.com/microhaus/mhblackbox3 … MORY/GETROM.ZIP