From owner-freebsd-hardware Mon Sep 21 05:33:56 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id FAA28358 for freebsd-hardware-outgoing; Mon, 21 Sep 1998 05:33:56 -0700 (PDT) (envelope-from owner-freebsd-hardware@FreeBSD.ORG) Received: from laker.net (jet.laker.net [205.245.74.2]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id FAA28352 for ; Mon, 21 Sep 1998 05:33:53 -0700 (PDT) (envelope-from sfriedri@laker.net) Received: from nt (digital-fll-150.laker.net [205.245.75.50]) by laker.net (8.9.0/8.9.LAKERNET.NO-SPAM.SPAMMERS.AND.RELAYS.WILL.BE.TRACKED.AND.PROSECUTED.) with SMTP id IAA27650; Mon, 21 Sep 1998 08:33:06 -0400 Message-Id: <199809211233.IAA27650@laker.net> From: "Steve Friedrich" To: "Joe Gleason" , "Mike Smith" Cc: "hardware@FreeBSD.ORG" , "spork" Date: Mon, 21 Sep 1998 08:32:54 -0400 Reply-To: "Steve Friedrich" X-Mailer: PMMail 98 Professional (2.01.1600) For Windows NT (4.0.1381;3) MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Subject: Re: SCSI card used at cdrom.com? Sender: owner-freebsd-hardware@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Sun, 20 Sep 1998 23:16:54 -0700, Mike Smith wrote: >> Wont the PCI bus still run at it's 33mhz regardless of what the system bus >> is and therefor the system bus speed would have no effect on PCI devices? > >Generally correct, yes. Actually, the correct answer is NO. With the exception of some newer motherboards, the PCI clock is derived from the system bus speed. Some newer moboards de-couple the PCI clock from the system bus. One place to do a little reading is http://www.tomshardware.com/ You'll want to research Front Side Bus. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message