How do you remap memory on a 386 ?

[Larry Snyder]

>I am running an Everex 3000A under SCO XENIX 386 SVR2.  What I did to
>avoid this problem was set the DIP switches on the motherboard to
>remap the first 1MB of memory to 512K main/512 extended.  This way,
>the whole thing is usable memory under XENIX/UNIX.  If the memory is
>configured as 640/0 or 640/384, that other 384K of memory is not usable

I wish I could do that.  I am running SCO 2.3.2 on my machine which
uses an AMI 25 mhz motherboard (non-cache) and I am not aware of anyway