Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!uunet!tellab5!wiseman
From: wiseman@tellab5.TELLABS.COM (Jeff Wiseman)
Newsgroups: comp.sys.mac.hardware
Subject: Re: Installing non-Apple hard disks
Keywords: hard drive disk Quantum 105
Message-ID: <1958@tellab5.TELLABS.COM>
Date: 9 Jan 90 18:58:52 GMT
References: <13642@fluke.COM> <526@tci.bell-atl.com> <15365@boulder.Colorado.EDU>
Reply-To: wiseman@tellab5.UUCP (Jeff Wiseman)
Organization: Tellabs, Inc. Lisle IL
Lines: 33

In article <15365@boulder.Colorado.EDU> rieman@boulder.Colorado.EDU (John Rieman) writes:
>In article <526@tci.bell-atl.com> kingman@tci.bell-atl.com (Matt Kingman) writes:
>[in response to the question: will apple's formatting software handle a
>105M quantum purchased from a third party:]
>>
>>No, HD Setup won't work with non-Apple drives. ...  
>
>Just out of curiousity, how does Apple's software *know* it isn't working
>with a drive purchased from Apple?  What's the difference between an
>internal Quantum 40 or 80 purchased from Apple and one purchased from a 
>3rd party?

Please note that the following  is what I have surmised from lots of
discussions and some poking areound in HDsetup with REsEdit.

Certain drives such as the Quantums are provided for apple with custom firmware
in the drives. It is designed to work only with Apples drives. It also serves
as a notice to Quantum when someone wants a drive fixed under the 5 year
quantum waranty that they have to go through apple's 90 day waranty (neat trick
huh?).

HOWEVER. Some drives can be made to work with Apples software. For example, a
Seagate 60 meg drive (271n or somthing like that?) can be installed and then
with ResEdit you change the A5init resource. It has a table of all the drives
that the software recognises. since the 40 meg Seagate that apple uses is
identical to the 60 except for size, you just change the drive type name (250n
?) to that of the larger drive and then the 40meg drive software is used for
the 60.

Anyway, hope this sheds some light.

-- 
Jeff Wiseman:	....uunet!tellab5!wiseman OR wiseman@TELLABS.COM