From owner-freebsd-questions Mon Aug 31 23:38:38 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id XAA28858 for freebsd-questions-outgoing; Mon, 31 Aug 1998 23:38:38 -0700 (PDT) (envelope-from owner-freebsd-questions@FreeBSD.ORG) Received: from myhakas.matti.ee ([194.126.98.150]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id XAA28849 for ; Mon, 31 Aug 1998 23:38:33 -0700 (PDT) (envelope-from root@myhakas.matti.ee) Received: (from root@localhost) by myhakas.matti.ee (8.9.1/8.8.5) id JAA08926; Tue, 1 Sep 1998 09:37:26 +0300 (EEST) Message-ID: <19980901093726.05868@matti.ee> Date: Tue, 1 Sep 1998 09:37:26 +0300 From: Vallo Kallaste To: FreeBSD Questions Subject: Re: Third IDE controller possible? Reply-To: vallo@matti.ee References: <199808312320.TAA32382@laker.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.89i In-Reply-To: <199808312320.TAA32382@laker.net>; from Steve Friedrich on Mon, Aug 31, 1998 at 07:20:38PM -0500 Organization: =?iso-8859-1?Q?AS_Matti_B=FCrootehnika?= Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Steve Friedrich wrote: > >I have a system with two IDE controllers currently, the > >primary using IRQ 14 and IO range 0x1F0-0x1F7 and the > >secondary using IRQ 15 and IO range 0x170-0x377. > >I also have another IDE controller that can be configured > >for IRQs 11 or 12, but (apparently) only the same IO > >ranges as the existing controllers (i.e. a jumper labelled > >"primary" or "secondary"). > > > >My guess is this third controller won't work. Am I wrong? > > You are correct, it won't work because IBM only designed the PC-AT to > support two IDE subsystems with two devices each. > > If you really need more disk drives or cdroms, etc., get SCSI. *** I have used three IDE controllers and six devices, so its possibe, though. Two controllers are as usually on the motherboard and third controller was found on the Gravis Ultrasound PnP soundcard. BTW, you must have third controller with separate irq and i/o addresses from the others. Also, take a look at the /usr/src/sys/i386/isa.h file. Vallo Kallaste vallo@matti.ee To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message