Re: 5mhz lisa to 8mhz?

From: Ray Arachelian <ray_at_email.domain.hidden>
Date: Tue, 03 Jan 2012 11:17:48 -0500

On 01/03/2012 06:43 AM, barana wrote:
> I remember reading apple slowed down the Lisa to 5mhz as the ram in
> the quantity needed to talk to a 8mhz 68000 was prohibitive.
> Is it possible to upgrade the ram to something that can handle 8mhz
> and bring the 68000 up to 8mhz?
> I know there are accelerators availible but iirc, they only work with
> Macos

Not easily done as the timing ties itself to the video refresh. You'd have to not just upgrade the RAM, but also modify the video timing as well. Probably would need to modify the VSROM to your new changes.

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Received on 2012-01-03 08:21:24

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