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

From: Stan Barr <>
Date: Fri Feb 18 12:59:52 2005


Sellam said:

> On Fri, 18 Feb 2005, Jules Richardson wrote:
> > Far as I know the BIOSes of the time would check for MDA / CGA / EGA /
> > VGA adapters at boot time, but 'not fitted' wasn't usually an option. I
> > wonder if there's a clever way involving a minimum of circuitry in such
> > a case for the BIOS checks to work...
> Some, not all. You should be able to find enough that can have the video
> disabled or not care if there isn't. There might also be jumpers on the
> motherboard you can set.

Yes, I would agree, suck it and see. I run 4 486s headless*, although
only one has no video at all. All mine have the option of booting
without video or keyboard.

* 3 run DOS (one pretends to be a PDP-11 and another a TU-58 tape, just to
get a little more on-topic...) and 1 runs Linux as a print server.

Stan Barr
The future was never like this!
Received on Fri Feb 18 2005 - 12:59:52 GMT

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