how to kludge a 486 PC into thinking it has a video card?

From: Randy McLaughlin <>
Date: Sun Feb 20 22:19:32 2005

From: "Scott Stevens" <>
Sent: Sunday, February 20, 2005 9:54 PM
> Actually, these days, a 'Hercules Graphics card' is becoming a 'scarce
> vintage item.' The junk cards everybody has too many of are ISA VGA
> cards. The monitor to plug into said 'Hercules Graphic card' has also
> become quite rare. Most of that early stuff is long-ago recycled. The
> 'junk' these days is 486 to Pentium II based.
> I have an original IBM-AT that I still haven't ever powered up, because
> it has all original IBM innards, including the IBM EGA card. I know how
> to jumper the card to work with a 'TTL monochrome' monitor (EGA
> monochrome is a highly usable mode, with high resolution 1 bit
> graphics), but have neither a Mono or an EGA monitor to check it out.
> I've been holding off on 'corrupting' it by putting in a clone ISA VGA
> card.
> We're awash in a sea of castoff VGA monitors these days. I watch for a
> TTL mono monitor at every auction and sale I go to, and haven't found
> one since acquiring the IBM-AT.
> -Scott

As long as you have a monitor that can handle the EGA frequency it should be
no great effort to use a VGA monitor on an EGA card.

Received on Sun Feb 20 2005 - 22:19:32 GMT

This archive was generated by hypermail 2.3.0 : Fri Oct 10 2014 - 23:37:39 BST