Date: Thu, 13 Apr 2000 01:48:47 -0400 From: Tom Embt <tom@embt.com> To: Trevor Johnson <trevor@jpj.net>, Jonathan Smith <jonsmith@dragonstar.dhs.org> Cc: freebsd-current@FreeBSD.ORG Subject: Re: Quickie question on UDMA/33 Message-ID: <3.0.3.32.20000413014847.01430494@mail.embt.com> In-Reply-To: <Pine.BSI.4.21.0004120545210.3525-100000@blues.jpj.net> References: <Pine.BSF.4.21.0004111944280.52908-100000@dragonstar.dhs.org>
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At 05:53 AM 4/12/00 -0400, Trevor Johnson wrote: >> Western Digital Caviar hard drives that should support UDMA/33, as should >> the Chipset. >> >> Both boot up, trying UDMA mode, throwing ICRC READ ERROR's then kick back >> down to PIO mode 4. > >> Bios's are set to do auto-chose pio/dma modes. > >There may be a BIOS option that will disable DMA entirely. > >> I've resolved to simply adding in the rc to reset them to pio mode, to get >> it over with (but I still get the errors at boot-up prior to the rc doing >> them). >> >> I simply use 'device ata' etc. forms in the knerel config. > >You might try commenting out this option (if you're using it): > >options ATA_ENABLE_ATAPI_DMA #Enable DMA on ATAPI devices That would apply only to the DVD, not the hard drives of course, but still there is no reason that reasonably modern equipment shouldn't work in UDMA/33 mode. Are the IDE cables new and in good shape? Using each end connector before attaching a device to the middle one... Tom Embt tom@embt.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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