thanks G!!!!

So:

Apple IIe

Apple IIc (Early - Mid production) — late models with 4464 chips, do not work with 4164's

Macintosh 128k

C 64 - (Early - Mid production) — late models with 4464 chips, do not work with 4164's

C 128 - (Early - Mid production) — late models with 4464 chips, do not work with 4164's

C PET (Replaces 4116's)

COCO 2 - (Early - Mid production) — late models with 4464 chips, do not work with 4164's

Also--

4164"s were:

The same chips were used in practically every "64k" home computer made in the early-mid-80s

Click to expand...

So in most cases you can mod the 4164 to be used where 4116 is, — will reduce load on the psu as well!

What is the mod if you don't mind me asking sir?