Date: Fri, 4 Aug 2000 19:15:24 -0500 From: "Josh Paetzel" <jpaetzel@hutchtel.net> To: "Richard Mahoney" <rbm49@student.canterbury.ac.nz>, "freebsd-questions" <freebsd-questions@FreeBSD.ORG> Subject: Re: CMD 640 ATA controller !WARNING! Message-ID: <006401bffe72$40af4b60$40440ace@mark8> References: <Pine.BSF.4.21.0008051119030.376-100000@muggins.co.nz>
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----- Original Message ----- From: "Mahoney, Richard B." <rbm49@student.canterbury.ac.nz> To: "freebsd-questions" <freebsd-questions@FreeBSD.ORG> Sent: Friday, August 04, 2000 6:21 PM Subject: CMD 640 ATA controller !WARNING! > Dear Readers > > I've recently replaced 3.4 Release with 4.0 Release on my elderly DEC > Venturis 5133. FreeBSD runs Emacs and Tex faster and more reliably than > was ever possible under the other OS. There is only one problem. > > Under 3.4 the boot messages complained that my CMD 640 ATA > controller was rubbish. For all that, 3.4 made concessions for > substandard hardware. It seemed to include a workaround and my > CD-ROM worked. > > I'm unhappy to say that this doesn't seem to be the case with 4.0. > > When I boot under 4.0 I get: > > atapci0: <CMD 640 ATA controller !WARNING! buggy chip data loss > possible> irq 14 at device 8.0 on pci0 > atapci0: Busmastering DMA not supported > > and later on: > > ad0: 4126MB <ST34311A> [8944/15/63] at ata0-master using BIOSPIO > ad1: 1625MB <ST31722A> [3303/16/63] at ata0-slave using BIOSPIO > acd0: CDROM <ASUS CD-S400/A> at ata1-master using BIOSPIO > > The upshot of all this is that if I am foolish enough to try to use my CD > the system will hang. With 4.0 I'd hoped to be able to liberate myself > from the other OS for ever. Now it seems I'm going to have to keep a DOS > partition merely for accessing the CD. > > My question is: > > Is there a workaround for this crappy controller which can be used > under 4.0 Release. I've been told that the contoller is stuck to the > motherboard and can't be replaced. And for all that, apart from this > problem, I'm rather attached to the old machine. > While your controller can't be removed, it probably can br disabled via a jumper on the motherboard if you are unlucky, or via the BIOS if you are lucky. You could then get an IDE controller and plug it into a handy-dandy ISA slot. Josh > -- > Regards Richard Mahoney > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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