Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265182AbTFYX0w (ORCPT ); Wed, 25 Jun 2003 19:26:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265208AbTFYX0v (ORCPT ); Wed, 25 Jun 2003 19:26:51 -0400 Received: from darkwing.uoregon.edu ([128.223.142.13]:50338 "EHLO darkwing.uoregon.edu") by vger.kernel.org with ESMTP id S265182AbTFYXYo (ORCPT ); Wed, 25 Jun 2003 19:24:44 -0400 Date: Wed, 25 Jun 2003 16:35:02 -0700 (PDT) From: Joel Jaeggli X-X-Sender: joelja@twin.uoregon.edu To: Edward Tandi cc: Timothy Miller , joe briggs , Artur Jasowicz , Brian Jackson , Bart SCHELSTRAETE , Kernel mailing list Subject: Re: AMD MP, SMP, Tyan 2466 In-Reply-To: <1056583075.31265.22.camel@wires.home.biz> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1830 Lines: 42 registers simply buffer the address and control signals going to and from a module. On server boards the issue has more to do with trace length and electrical loading than anything else... One of the issues you encounter on server boards more than elsewere is larger more complicated memory modules things like 36 chip double stack ecc 1 and 2gb dimms, or a large number of dimm modules overall (like 4-8 slots rather than 1-4). joelja On 26 Jun 2003, Edward Tandi wrote: > > The point I was trying to make is that the registers are there to deal > with an SMP race condition of some sort. Athlon MP motherboards fitted > with two processors will not work properly without 'registered' RAM. I > have hard experience of this and it this experience I am sharing with > someone who is seeing the same symptoms. > > Ed-T. > > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ > -- -------------------------------------------------------------------------- Joel Jaeggli Academic User Services joelja@darkwing.uoregon.edu -- PGP Key Fingerprint: 1DE9 8FCA 51FB 4195 B42A 9C32 A30D 121E -- In Dr. Johnson's famous dictionary patriotism is defined as the last resort of the scoundrel. With all due respect to an enlightened but inferior lexicographer I beg to submit that it is the first. -- Ambrose Bierce, "The Devil's Dictionary" - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/