http://en.wikipedia.org/wiki/MDRAM#Multibank_ … RAM_.28MDRAM.29

If anyone should have some extras lying around.... ? 😀

Preferrably a pair (not sure how these things needs to be installed).
The spec is unclear, but probably MD908 or MD909

http://www.xfree86.org/3.3.6/tseng12.html#19

Or for that matter, a full packed 4MB vga card would also do - ET6000/6100...

Let me know.