Re: Installing a Zip GS

[Rubywand <rubywand@swbell.net>]

MQSmith writes ...
> 
> I've recently acquired a Zip GSX v1.02, but I have no idea how to
> install it
> (which slot to put it in, what the switches should be set to, how to
> put it on the processor, etc).  If someone could give me some
> instructions on how to do this, I'd be most grateful.

     Here is some info on setting the DIP switches:


     The default SW1 settings (x) are ...

ON    x     x        x  m  m 
OFF      x     x  x     m  m
      1  2  3  4  5  6  7  8


1- Cxxx/Dxxx Cache: ON= enabled.
2- Defeat Joystick delay: OFF= allow delay.
3- Defeat AppleTalk delay: ON= no delay for AppleTalk.
4- Counter Delay: OFF= no delay. Set ON to pass IIgs
   diagnostic self-test #05 ("Speed Test").
5- CPS Follow: OFF for floppy drives to work.
6- ZipGS enable: ON. Set OFF to allow powerup boot in
   slow mode.

7 & 8- Set these to installed Zip cache memory size:

ON  ON    8k
ON  OFF  16k
OFF ON   32k
OFF OFF  64k  



     SW2 controls whether a Slot card is accessed at full speed (ON for
SW2-<Slot#>) or "normal" speed (OFF for SW2-<Slot#>).


     The default SW2 settings (x) are ...

ON    x  *  x  x  x     x  
OFF      x           x     x
      1  2  3  4  5  6  7  8


     On our Zip-GSx, *Slot 2 has a RamFAST SCSI interface and SW2-2 is set
ON. Otherwise, the settings we use are the defaults shown.

     Most Slot cards seem to work fine without needing to do a slow-down. For
example, we run a Focus Hard Card in Slot 7 and the RamFAST in Slot 2 (the
Zip-GSx is in Slot 3).  Your Stereo Card does not care; and, when the
MockingBoard is plugged into Slot 4, the setting remains at ON.

     Every once in a while, Slot 2 is used for testing telecom programs which
need to use Slot 2 firmware and the Slots setting goes to "Modem Port" (from
"Your Card" for the RamFAST). No change is made to the Zip-GSx settings--
SW2-2 remains ON-- and everything seems to work fine. 

     Whether or not a particular card can work without a slow-down is
something you can determine by experimentaton. This is easiest using the Zip
CDA accessed via the Desk Accessories menu (OpenApple-Control-Escape).  The
CDA settings are not permanent. Once you find the settings you like, you can
turn OFF the computer and set the switches on the board to match the settings
that work best.



Rubywand