🚀 go-pugleaf

Check into the SOTA company's offerings - we are using their add-in boards
to upgrade XT-class Zeniths to 286 or 386sx power, and they seem to work well.

I have no idea if SOTA offers a board to upgrade a 286 to 386sx or 386 chip.

No problems in the 6 months or so, except that getting the device drivers
set up correctly took a visit from the local vendor's tech staff.

We also got their 16i card for a 2MB memory implant in a Zenith XT-clone 
(model 151, 159, or 1217, I don't recall which.)

I don't have the (800) number handy, check recent PC Mag or equivalent.

The pricing is such that you might as well skip the 286 SOTA board,
and go ahead and add a 386sx chip (to an XT).  I looked into this area
in some depth about a year ago, and SOTA came to the Zenith market early,
and has stayed up as a player - has kept innovating, delivers good product,
has fairly readable manuals.

I realize this may not help you with a 286 - good luck.

Denis

dmckeon@hydra.unm.edu