Date: Wed, 28 Aug 2002 08:36:10 -0700 (PDT) From: Tenebrae <tenebrae_BSD@niceboots.com> To: ian j hart <ianjhart@ntlworld.com> Cc: stable@freebsd.org Subject: IDE cable specs Message-ID: <20020828082940.N41515-100000@steeltoe.niceboots.com>
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Remember a while back when the subject of IDE cable length came up on the freebsd stable mailing list and you were preaching the gospel of 18" or less? Well...I just got a new motherboard (Abit VP6) and its manual states: "There are four requirements for attaining Ultra ATA-66 and ATA-100: * The drive must support Ultra ATA-66 or ATA-100. * The motherboard and system BIOS (or an add-in controller) must support Ultra ATA/66 and ATA-100. * The operating system must support Direct Memory Access (DMA), Microsoft WIndows 98, Windows 98SE and Windows 95B (OSR2) support DMA. * The cable must be an 80-pin conductor. The length should not exceed 18 inches. If all of the above requirements are met, you can enjoy the Ultra ATA/66 and ATA-100 features of your computer system." Yeah, the motherboard manual switches between a - and a / in there. Yeah, more OSs than they mention there support DMA (obviously). Sorry if this is dredging up old news that everybody already knows and everything, but I just thought it was a useful tidbit and backed up your point. I guess if your drive bays are greater than 18" from your motherboard connector, you'd better switch to SCSI. FreeBSD Stable mailing list Cc:'d for the archives. -Tenebrae. --- The sending of any unsolicited email advertising messages to this domain may result in the imposition of civil liability against you in accordance with Cal. Bus. & Prof. Code Section 17538.45. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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