rec.autos.simulators

I have IndyCar Racing II on a CD for DOS/Win 95/Mac, V 1.0.2, and I
try to run it on a 486DX50 with Windows 95.  I also have a GUS Classic
soundcard.

After I have installed ICR2 in DOS mode (because of my relatively slow
processor) running setup correctly finds the GUS with the correct
settings.  However, when it tries the sample sound the result is very
patchy, garbled and slow.  Trying to run the game with the sound set
like this results in the game running very slowly with very bad sound.

The only solution I found to make the sound work was to slow down the
AT bus clock from around 8 MHz down to arounf 6 MHz.  The sound was
now good but the joystick NEVER stabilizes even after it has been
calibrated.  It is impossible to drive as the wheels are continually
jiggling either way.

The only solution is to turn off the sound completely in setup.  I can
then reset the AT bus speed and the joystick is stable and usable.  It
is not possible to use one of the GUS emulators as the setup program
will only allow a GUS setting.

As a test I even tried to install directly in Win 95, apart from it
being very slow the sound was also very patchy and bad.

*This is the only game/program in which I have had this problem.*
I also have the old IndyCar Racing which performs well with the GUS
patch from GRAVIS.ZIP.

Is there a solution to this problem?  Or an upgrade which corrects it?
The game loses alot without sound.

I have tried mailing to both Sierra and Papyrus with this question but
have, as yet, not got an answer, and have also tried to search their
Web sites for any info but have found nothing helpful.

Thanks in advance for any help,

        Robert
--
Robert Virding                          Tel: +46 (0)8 719 95 28

Ericsson Telecom AB
S-126 25 ?LVSJ?, SWEDEN
WWW: http://www.racesimcentral.net/~rv
"Folk s?ger att jag inte bryr mig om n?gonting, men det skiter jag i".

Given what you said about the AT bus clock on a 486, that number should be
7.??? (whatever is in your bios) or as close to 8 as possible.  Your
settings should not be anything like 6 or 8 in any bios I've ever seen.
That would be meaningless.  What you probably have as options are a divisor
of the CPU clock.  For your Dx-50 the Oscillator is at 25 MHZ either
jumpered to a clock or has an oscillator zip tied to the board.  for a
25Mhz use CLK/3 = 8.333 (as close to 8 as U can get with a divisor).  To be
honest,  It sounds as if your motherboard was set up incorrectly from the
place You got the machine.  Check the MB Manual for additional settings in
the CMOS.  You may find a table in the back of the book on most boards that
tells you what wait state settings and clock settings to use.  DOUBLE CHECK
by reading your manual if they have jumper settings for the CPU speed.
Also check for your VL-Bus settings to be sure they are <33MHZ.  This
setting does not have anything to do with CPU speed,  just EXTERNAL CPU
speed.  Yours is 25Mhz for a 50Mhz CPU.  If you have no jumpers for CPU
speed, opening the case and looking at the oscillator is a good idea.
You'ld be surprised at how many guys built 486 systems and haven't a clue
about what an oscillator does.  If yours is wrong (and I've seen people use
wrong ones for 3 or more years) Your system will be short on performance
and do strange stuff like You mentioned.

Good luck