Re: 4 MB limite (was Re: Zip GS and 14MB RAM??)

[cdouglas@ibs.net (Collin Douglas)]

In article <3315740E.2893@swbell.net>, rubywand@swbell.net wrote:

>
>     There have been claims that some 8MB main memory expansion cards 
>(which employ a kludge to obtain an additional address line) work, kind 
>of work, sometimes work, etc.. Based upon reports, the extra memory 
>"works"; but, there are special limitations on using it due to lack of 
>support by some peripherals and system software. A major drawback of the 
>8MB expansion is that, for full support, quite a number of changes are 
>required; yet, it is a dead end. The user gets another 4MB and that's it.
>
>

I'm confused.  I've got an OctoRAM board with 8MB RAM and have never had any 
problems at all.  The system recognizes all 8MB RAM and it is quite usable in 
every application I own.

What are some of the problems associated with 8MB?  I know that DMA is limited 
to the first 4MB.  What others are there?

Collin Douglas
cdouglas@midfirst.com