From owner-freebsd-questions Thu Feb 27 1: 8:52 2003 Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 5B6CB37B401 for ; Thu, 27 Feb 2003 01:08:51 -0800 (PST) Received: from spider.deepcore.dk (cpe.atm2-0-56339.0x50c6aa0a.abnxx2.customer.tele.dk [80.198.170.10]) by mx1.FreeBSD.org (Postfix) with ESMTP id 57A3343FA3 for ; Thu, 27 Feb 2003 01:08:50 -0800 (PST) (envelope-from sos@spider.deepcore.dk) Received: (from sos@localhost) by spider.deepcore.dk (8.12.5/8.12.6) id h1R98n4c083623; Thu, 27 Feb 2003 10:08:49 +0100 (CET) (envelope-from sos) From: Soeren Schmidt Message-Id: <200302270908.h1R98n4c083623@spider.deepcore.dk> Subject: Re: can't get to ATA133 (Addendum to previous post) In-Reply-To: <5.2.0.9.0.20030227025914.07dc69e8@mail.go2france.com> To: Len Conrad Date: Thu, 27 Feb 2003 10:08:48 +0100 (CET) Cc: freebsd-questions@freebsd.org X-Mailer: ELM [version 2.4ME+ PL98b (25)] MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=ISO-8859-1 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG It seems Len Conrad wrote: > > >There are two things you might want to look at. First it trying to set the > >modes manually after boot. This is not recommended, and I would not do it > >unless on a read only file system, if setting the higher mode fails, or > >fails partially, you might be in for a world of trouble. To do this, you > >can try: > > > >atacontrol mode ata4 udma6 --- > >atacontrol mode ata6 udma6 --- That wont change anything at all... > >Also, you might want to look at the length of the cables. According to the > >Ultra-ATA (UDMA) standards, an 80-conductor cable must be no longer than > >30cm, or about 12". Cables of longer length begin to build up too much > >noise, even for the double-conductor design to combat. While Promise's BIOS > >and their own drivers (as seen on Windows) might tolerate these noise > >levels, I'm very sure ata(4) will not. ATA cables for UDMA > 2 can be up to 45cm long according to spec. > I've already thought of that and the guy on site says the Promise cables > are 18 inches. Which is just about right... -Søren To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message