Re: Apple HS SCSI card DIPs???

[venom@nudge.io.org (Robert Tate)]

Shawn Platkus (platkus@falcon.ic.net) wrote:

: Hello All,

: I've recently acquired an Apple HS SCSI card without a manual, and
: I was wondering what the function of the four DIP switches are in the
: lower left corner of the board.

: Also, I'm going to be using this card in an Apple ][e, and would
: also like to know what the suggested setting for the switches are
: in this case.

The DIP switches on the card are for setting the ID number of the SCSI 
device connected.  If you want to boot from the hard drive, then set it 
to 7 which is with all the switches down or 'closed'.  This was how I 
had it on my //e anyways.

There is something else you need to keep in mind, as far as I know, this 
applies to all Apple Hi-Speed SCSI cards; they do not supply termination 
power to the bus.  So if you have a hard drive that also does not, then 
you'll either have to build a box to perform this, or, as a faster fix, 
and just as safe (at least I never had any problems), you can solder a 
diode between two points directly on the card itself to do this.  I 
posted a message about this a while ago, with the instructions for the 
box, but am still trying to get the GIF file that shows the latter 
method.  I may be able to get it today.

Hope this helps.

Rob.


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