[Coco] Upgrade MPI?

[K. Pruitt]

----- Original Message ----- 
From: "Robert Gault"
Sent: Wednesday, May 06, 2015 3:23 PM
Subject: Re: [Coco] Upgrade MPI?


> Joe Grubbs wrote:
>> Through sheer blind luck I have acquired a Tandy branded 26-3124 MPI. It 
>> looks barely used, and more importantly, the OE warranty sticker is still 
>> in tact. Because it is "virgin" I'm reluctant to give it the CoCo3 PAL 
>> upgrade. Am I being ridiculous?
>>
>
> If you want to use it with a Coco3, upgrade it! It really is not an 
> "upgrade to make it 'better'" but a required change to prevent ghosting of 
> I/O bytes into the GIME region. If you intend to use it with a Coco1 or 2, 
> you do not need to make any changes.
>
>
> -- 

Does this ghosting cause more than software/hardware conflicts?  Can the 
GIME actually be damaged?

I used a non-upgraded 26-3124 for decades with  a Coco 2  and two different 
Coco 3s without issue.
Perhaps I'm just lucky.

School me, Robert.