Article View: comp.sys.ibm.pc.misc
Article #7389Re: mfm+ide drive in 1 computer.
From: John C. Archambeau
Date: Sun, 13 Jan 1991 17:16
Date: Sun, 13 Jan 1991 17:16
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2214 bytes
bkirby@mcs213a.cs.umr.edu (Bill Kirby) writes:
>In article <6833@crash.cts.com> jca@pnet01.cts.com (John C. Archambeau) writes:
>I'm confused. I've called CompuAdd (i own a compuadd floppy/harddrive
>controller), and USA Flex (I was going to buy an IDE drive from them)
>and they both claim that the controllers will not interfere with each
>other. I specifically told the USA Flex tech. guy that I had heard
>of I/O and IRQ conflicts, but he assured me that this wouldn't be a
>problem.
Either the person at CompuAdd needs a laxative or their controller isn't a
standard ST412/506 MFM controller (standard being that it behaves like a
WD1003).
>Right now, my only option for a second hard drive must be 3.5"
>form factor. And the cheapest drives i've found are IDE.
>
>If I decide to get rid of my current drive (ST-225) and go with the
>IDE by itself, can I still use my CompuAdd controller to control
>my floppy drives? If not, what do I do?
You can if you switch the port address on the ST412/506 MFM controller to its
secondary port address and not hook a hard drive to it. Very few ST412/506
MFM controllers support IRQ switching. Best bet would be to get an IDE
adaptor with a floppy port on it and get rid of the CompuAdd controller
completely.
>Also, does the IDE drive require any special device driver?
No, that's the beauty of IDE. It looks like an ST412/506 drive to your BIOS.
// JCA
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!samsung!usc!ucselx!crash!pnet01!jca From: jca@pnet01.cts.com (John C. Archambeau) Newsgroups: comp.sys.ibm.pc.misc Subject: Re: mfm+ide drive in 1 computer. Message-ID: <6887@crash.cts.com> Date: 13 Jan 91 17:16:02 GMT Sender: root@crash.cts.com Organization: People-Net [pnet01], El Cajon CA Lines: 40