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Removing the blitter fix from a Mega ST

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silvercreekvalley
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Removing the blitter fix from a Mega ST

Post by silvercreekvalley »

I'm adding an accelerator to a Mega ST, so need to remove the CPU.

It looks like the 'blitter' fix board is attached to the CPU on this system. I'm not using
the blitter, so I can remove this and the 'fix', but from memory I think there is a link
or something that needs to be re-soldered for this to work?

Does anyone know what the fix is?

Thanks

Ian.
Chandler
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Re: Removing the blitter fix from a Mega ST

Post by Chandler »

i was actually told that the add on fix that sits ontop of the CPU is to do with the CPU, a bug or error with a batch of motorolla processors, and it was only in some mega st's too

i have a mega st 4 here with no add on, and no there was never one in there in the first place, yes it has a blitter chip installed too

unless anyone knows otherwise
jd
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Re: Removing the blitter fix from a Mega ST

Post by jd »

Chandler wrote:i was actually told that the add on fix that sits ontop of the CPU is to do with the CPU, a bug or error with a batch of motorolla processors, and it was only in some mega st's too

i have a mega st 4 here with no add on, and no there was never one in there in the first place, yes it has a blitter chip installed too

unless anyone knows otherwise
I always thought it was the blitter fix even back in the press at the time (i'm sure i've seen an official Atari doc release for the mod), who told you/where's the info to say otherwise. Just interested.

cheers
silvercreekvalley
Obsessive compulsive Atari behavior
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Posts: 121
Joined: Wed Nov 08, 2006 3:06 pm
Location: UK

Re: Removing the blitter fix from a Mega ST

Post by silvercreekvalley »

What I've found is that if you remove the fix board, and the blitter, nothing works so
its hard to upgrade these boards.

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