From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 3 Aug 2001 11:39:30 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 3 Aug 2001 11:39:20 -0400 Received: from u-54-20.karlsruhe.ipdial.viaginterkom.de ([62.180.20.54]:35467 "EHLO dea.waldorf-gmbh.de") by vger.kernel.org with ESMTP id ; Fri, 3 Aug 2001 11:39:07 -0400 Date: Fri, 3 Aug 2001 15:32:31 +0200 From: Ralf Baechle To: "chen, xiangping" Cc: linux-kernel@vger.kernel.org Subject: Re: PCI bus speed Message-ID: <20010803153231.A28624@bacchus.dhis.org> In-Reply-To: <276737EB1EC5D311AB950090273BEFDD043BC536@elway.lss.emc.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <276737EB1EC5D311AB950090273BEFDD043BC536@elway.lss.emc.com>; from chen_xiangping@emc.com on Thu, Aug 02, 2001 at 06:47:49PM -0400 X-Accept-Language: de,en,fr Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Aug 02, 2001 at 06:47:49PM -0400, chen, xiangping wrote: > Is there any easy way to probe the PCI bus speed of an Intel box? You can find about PCI33 or PCI66 standards but there is no way to find the exact clock rate the PCI bus is actually clocked at. Which is a problem with certain non-compliant cards; the IOC3 card and a few others derive internal clocks from the PCI bus clock rate so will not properly work if operated on a bus with different clock rate. Ralf