Accelerator raters
4 messages in this thread
I was the one who started the Midget Racer compatibility question. Run
without doing anything extra, of all my programs, it crashed half of my games,
but only one non-game, the copier RawCopy. There is a program that comes with
the MR, cache_off, which when run allows Rawcopy, plus every game that didn't
work and used AmigaDOS, to run with the exception of Marble Madness, which they
insisted should run. Development of a program which will survive a warm-boot is
mentioned for compatibility with those games that use a non-standard dos.
My no-go games are Heroes of the Lance, Barbarian and Terrorpods (which
may imply the problem with most Psygnosis games), PacMania and Bomb Busters
(which you should avoid like the plague anyway). Of course there is marble
madness which I don't know why it doesn't work.
What I heard was that the CMI board had all the compatibility problems, as
it can't be slowed to 7.14 MHz. The MR runs at that speed, so many problems are
removed.
— Ethan
Ethan,
Only one small correction. The CMI accelerator CAN be slowed to 7.14 MHz.
There is a software program supplied that will do this or you can permanently
set it to either speed via jumpers on the board. Also, Ron, if you're reading
this, there is a socket for a 68881 on the CMI board and it uses a 68000. My
main problem with the CMI board was that my machine fully outfitted didn't seem
to get along well with it. With the std. 1 Mb RAM it ran fine for days. With
the A2052 installed, it sould run for about 1/2 hour then get progressively
weirder until it wouldn't even ask for the boot disk on startup. I tried a
different A2052 and had the same problem. I tried the CMI board in my dealers
machine (boy were they understanding) which had an A2052 and it worked fine.
AAAAHHHHH !!! I finally gave up in frustration. It's barely possible that
I've got an intermittant problem in my machine or an unusually noisy bus when
loaded, but *I* could never figure it out. Incidentally, CMI said they tested
it with the A2052 and really and truly tried real hard to get it to work with
mine. This is my contribution to the discussion. Hmmmmm… actually I guess I
should have sent this last to Ron. Excure me Ethan. Ron, I hope you're
following the thread…
Kevin
Kevin, sorry about the MHz booboo. The ability to slow it down, though,
won't help in the situations where the program boots with a non-standard dos.
Most people won't open their computer every time they play a certain game to
switch a jumper, either.
— Ethan