From owner-freebsd-alpha Tue Apr 2 15:37: 4 2002 Delivered-To: freebsd-alpha@freebsd.org Received: from falcon.prod.itd.earthlink.net (falcon.mail.pas.earthlink.net [207.217.120.74]) by hub.freebsd.org (Postfix) with ESMTP id EB71437B416 for ; Tue, 2 Apr 2002 15:37:00 -0800 (PST) Received: from pool0045.cvx22-bradley.dialup.earthlink.net ([209.179.198.45] helo=mindspring.com) by falcon.prod.itd.earthlink.net with esmtp (Exim 3.33 #1) id 16sXpi-0002XX-00; Tue, 02 Apr 2002 15:36:59 -0800 Message-ID: <3CAA4083.80AB0B72@mindspring.com> Date: Tue, 02 Apr 2002 15:36:35 -0800 From: Terry Lambert X-Mailer: Mozilla 4.7 [en]C-CCK-MCD {Sony} (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: Christian Weisgerber Cc: freebsd-alpha@freebsd.org Subject: Re: Source of "processor correctable error"? References: <20020401152244.GE41357@cicely8.cicely.de> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-alpha@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org Christian Weisgerber wrote: > Bernd Walter wrote: > > > Warning: received processor correctable error. > > These are most likely main memory errors. > > Indeed one of the SIMMs is bad. Annoyingly this halves the amount > of memory and the memory bus width in the box. Verify that it's the SIMMs, by swapping them. It may be that your wide path is broken, instead. > What are my chances of replacing the faulty SIMM? Can I just > substitute any other 72-pin FP-DRAM 8Mx36 (32MB ECC) 60ns SIMM, or > are all modules required to be exactly alike? SIMMs of this general > type are still available at somewhat unreasonable prices I guess, > but finding one that shares exactly the same organization and God > knows what parameters seems unlikely. Usually, you want them to be the same, because of slight differences in timing that come from method of manufacture and internal logic design. You can generally get away with matching banks with the same address select. My main source of these things is PS/2 memory suppliers, but I don't know your bus speed, so I don't know if this will work for you. -- Terry To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message