Adaptec AHA1542 SCSI controller & high-speed CPUs

Karl Denninger karl at ddsw1.MCS.COM
Tue Dec 12 07:45:21 AEST 1989


Hello everyone!

I have a quick question.  Since I can't reach Adaptex (Roy Neese's machine)
anymore for anonymous login, I will ask here in the hopes that someone has
an answer.

We wish to use a 1542 with a high speed CPU.  Specifically, a Cached 25Mhz
80386 machine.  What problems, if any, am I likely to run into doing this?
I know the 1542 is a third-party DMA board, which implies that it will do
it's own thing with the bus.  Will this get me in trouble with the cache?

Is this possible, and if so, what should I watch out for?

Secondly, does anyone have the programs that were on adaptex to diddle the
"mode pages"?  I specifically want to get the read-ahead turned on for 
either a CDC or Maxtor fixed disk.

Replies appreciated; users who actually have this combination working even
more appreciated.  If you DO have this combination working please indicate
the configuration you are using (motherboard, etc).

Thanks!

--
Karl Denninger (karl at ddsw1.MCS.COM, <well-connected>!ddsw1!karl)
Public Access Data Line: [+1 708 566-8911], Voice: [+1 708 566-8910]
Macro Computer Solutions, Inc.		"Quality Solutions at a Fair Price"



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