1. Forum
  2. USENET
  3. comp.sys.apple2

  • Double Hi Res on a IIe

    From can...@gmail.com@can7700@gmail.com to comp.sys.apple2 on Saturday, November 14, 2020 15:49:14
    From Newsgroup: comp.sys.apple2

    I've read that you need a rev-B IIe motherboard to be able to use double hi-res graphics.
    I have an enhanced IIe (rev-A) on the workbench that can't display DHGR.

    but what are the differences between the rev-A and the rev-B motherboard and is there anything that can be modified on the rev-A board in order to display DHGR properly?

    --- Synchronet 3.18b-Win32 NewsLink 1.113
  • From awanderin@awanderin@gmail.com to comp.sys.apple2 on Saturday, November 14, 2020 17:50:30
    From Newsgroup: comp.sys.apple2

    "can...@gmail.com" <can7700@gmail.com> writes:

    I've read that you need a rev-B IIe motherboard to be able to use
    double hi-res graphics.
    I have an enhanced IIe (rev-A) on the workbench that can't display DHGR.

    but what are the differences between the rev-A and the rev-B
    motherboard and is there anything that can be modified on the rev-A
    board in order to display DHGR properly?


    Good summary and links here:

    https://retrocomputing.stackexchange.com/questions/1034/what-was-the-change-to-the-apple-e-motherboard-that-allowed-for-double-hires-g


    --
    Jerry awanderin at gmail dot com
    --- Synchronet 3.18b-Win32 NewsLink 1.113