From owner-freebsd-hackers@FreeBSD.ORG Fri Dec 5 12:28:19 2003 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 9FC5716A4CF for ; Fri, 5 Dec 2003 12:28:19 -0800 (PST) Received: from smtp.covadmail.net (mx05.covadmail.net [63.65.120.65]) by mx1.FreeBSD.org (Postfix) with SMTP id 4047443FB1 for ; Fri, 5 Dec 2003 12:28:17 -0800 (PST) (envelope-from strick@covad.net) Received: (covad.net 22780 invoked from network); 5 Dec 2003 20:28:10 -0000 Received: from unknown (HELO mist.nodomain) (67.101.98.171) by sun-qmail03 with SMTP; 5 Dec 2003 20:28:10 -0000 Received: from mist.nodomain (localhost [127.0.0.1]) by mist.nodomain (8.12.9p2/8.12.9) with ESMTP id hB5KS1Eo001286; Fri, 5 Dec 2003 12:28:01 -0800 (PST) (envelope-from dan@mist.nodomain) Received: (from dan@localhost) by mist.nodomain (8.12.9p2/8.12.9/Submit) id hB5KS1WN001285; Fri, 5 Dec 2003 12:28:01 -0800 (PST) (envelope-from dan) Date: Fri, 5 Dec 2003 12:28:01 -0800 (PST) From: Dan Strick Message-Id: <200312052028.hB5KS1WN001285@mist.nodomain> To: freebsd-hardware@FreeBSD.ORG cc: itetcu@apropo.ro cc: freebsd-hackers@FreeBSD.ORG cc: tashchuk@easystreet.com cc: dan@mist.nodomain Subject: Re: Incorrect identification of ultra dma ATA cables X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 05 Dec 2003 20:28:19 -0000 Dan Strick wrote: > > I tried three different 80 conductor UDMA cables. I examined them > carefully. I even checked for correct wiring of the PDIAG/CBLID > signal lines with an ohmmeter. Then Bohdan Tashchuk wrote: > > I've got one simple idea for you to try. You probably did this already > but you don't say so explicitly. > > The 80 conductor cables are color coded. Blue connector goes to the > motherboard, black connector to the master drive, grey connector to the > slave drive. > > Did you plug the cable in the right way? Then Ion-Mihai Tetcu wrote: > > Well, I'm just sitting here and waching a few 80 conductor cables and > they are: > black - black - black x 3 > black - grey - black x 5 > blue - grey - black x 1 > red - grey - black x 1 > > And the nice thing is that all are from Gigabyte motherboards boxes. >>> Yes, I plugged the cables in the right way. The motherboard end, which is supposed to use a blue socket connector, is the end that is not connected to the PDIAG/CBLID signal line. My Gigabyte motheboard did come with some astonishingly gaudy UDMA cables. Two were bright yellow with green (instead of blue) host end connectors and a bright red stripe along the conductor#1 edge of the cable. One grey cable had a red (instead of blue) connector. As near as I can tell, the electrons still drift along at pretty much the same old speed regardless of the color. Dan Strick strick@covad.net