[comp.sys.amiga.hardware] MMR Compatibality

echadez@isis.cs.du.edu (Edward Vincent Chadez) (06/06/91)

Has anyone experienced any hardware compatibaltiy problems with the Mega-
midget racer (from CSA)?  Furthermoor, does anyone know of any hard drives/
controlers that wouldn't work with the MMR?  I have a two year old RLL drive
and a controller that I have reason to suspect won't work with the MMR.  I
know that the HD/Controller won't work with the '020 miget racer. *sigh*...

Any advice is appreciated.  As usual, thanks in advance.

-Ed
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 \X/ echadez@isis.cs.du.edu                                   Edward Chadez
Amiga500-------------------------------------------------------------------

davem@col.hp.com (Dave K. Martin) (06/07/91)

So far, I've had no compatibility probems with my Mega-Midget Racer on anything
I've tried it with.  It worked just fine with my old Expansion Technologies 
Flash Card controller and is currently working with a GVP Series II controller.
The MMR has also been very compatible with memory boards (I don't have 32 bit
ram for the MMR yet :-( ) and software.  Only a couple of European demos won't 
run in 68030 mode but by switching down to 68000 mode, they run fine.
I tried a 68020 Midget-Racer from CSA and it would work with either the Flash
Card or the 8-up board but not both.  The tech rep a CSA said the Midget Racer 
was not terribly compatible with most add-on stuff but that the Mega-Midget 
Racer so far has worked with virtually everything in their (CSA's) testing.

Some of the games I play will display nasty lines and garbage on the screen at
times but I've never really done any back-to-back testing with the 68000/68030
modes to determine the cause.  The garbage I'm seeing may well be from the 
games being run from a hard drive and not the floppies they were intended to 
be run from.

Even without the 32 bit ram, the 25mhz MMR makes a noticible difference in 
overall speed.

Hope this is helpful....
davem