Re: RamFAST SCSI and largest HD/partition

[Jay <Someone@somewhere.com>]

*BONG*  I forgot about termination power.....

Thanks Wayne and Liam!

Hey Liam, what is this ADU you are referring to?  Do you mean the
"Advanced Disk Utilities" that comes with System 6.0.1?

What do the Chinook SCSI utilities do that the HS-SCSI utilities 
do not?  Are they public domain?

Thanks!

--> Jay

Wayne Stewart wrote:
> 
> Jay wrote:
> 
> > Andy and George,
> >
> > Thanks for the help.  I'm going to try out some 540MB drives.
> > I tried a 1.08 Gig IBM drive which must have been SCSI-2 only.
> >
> > I couldn't get the Apple High Speed SCSI card to recognize anything
> > above 40MB (and I've tried 40MB, 80MB, 100MB, 120MB, 200MB, 240MB).
> > I used the Apple High Speed SCSI Utilities (prodos 8) and every time
> > it couldn't find a drive.
> >
> > Pull out the HS-SCSI and put in the RamFast, and all of them are
> > recognized.
> 
> Jay, I'm going to take a guess here and suggest term power is the reason the
> Apple HS SCSI card isn't recognizing those drives. I don't mean termination,
> term power is a different thing. Either the drive or the SCSI card must supply
> term power for the drive to be recognized. I believe there's something on
> modifying Apple SCSI cards to provide term power in the FAQ. Alternately
> there are a few terminators that do supply term power, most notably the
> diagnostic terminators. The Ramfast supplies term power so most drives show
> up.
> I've tried over a hundred different drives with different Apple HS SCSI cards
> over the years ranging in size from 20mb to 4gb and only had 2 that the cards
> wouldn't recognize if the drive received both termination and term power.
> 
>       Wayne