From owner-freebsd-alpha Fri Mar 21 20:52:45 2003 Delivered-To: freebsd-alpha@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id DDCDA37B404 for ; Fri, 21 Mar 2003 20:52:44 -0800 (PST) Received: from dragon.nuxi.com (trang.nuxi.com [66.93.134.19]) by mx1.FreeBSD.org (Postfix) with ESMTP id BD4CC43F85 for ; Fri, 21 Mar 2003 20:52:43 -0800 (PST) (envelope-from obrien@NUXI.com) Received: from dragon.nuxi.com (smmsp@localhost [127.0.0.1]) by dragon.nuxi.com (8.12.7/8.12.7) with ESMTP id h2M4qQS2010741; Fri, 21 Mar 2003 20:52:26 -0800 (PST) (envelope-from obrien@dragon.nuxi.com) Received: (from obrien@localhost) by dragon.nuxi.com (8.12.7/8.12.7/Submit) id h2M4qQLu010740; Fri, 21 Mar 2003 20:52:26 -0800 (PST) Date: Fri, 21 Mar 2003 20:52:26 -0800 From: "David O'Brien" To: Will Andrews Cc: alpha@freebsd.org Subject: Re: RAM for a DEC PWS 433au? Message-ID: <20030322045226.GA1845@dragon.nuxi.com> Reply-To: obrien@freebsd.org Mail-Followup-To: David O'Brien , Will Andrews , alpha@freebsd.org References: <20030321231205.GB983@procyon.firepipe.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030321231205.GB983@procyon.firepipe.net> User-Agent: Mutt/1.4i X-Operating-System: FreeBSD 5.0-CURRENT Organization: The NUXI BSD Group X-Pgp-Rsa-Fingerprint: B7 4D 3E E9 11 39 5F A3 90 76 5D 69 58 D9 98 7A X-Pgp-Rsa-Keyid: 1024/34F9F9D5 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 On Fri, Mar 21, 2003 at 03:12:05PM -0800, Will Andrews wrote: > Does anyone know what kind of RAM these machines take? I am > getting conflicting reports: > > 1) It takes normal ECC SDRAM, and would be fine with ECC PC100. > 2) It's a special form of ECC SDRAM with a slight physical > extension of some sort; it works in both Alphas and normal ECC > SDRAM slots, but normal ECC SDRAM doesn't work in alpha slots. It uses 83 MHz unbuffered ECC SDRAM DIMM's installed in pairs. IIRC double sided DIMM's (ie, RAM chips on both sides of the DIMM). It is hit and miss getting PC100 ECC DIMM's to work. I've seen successfully reports from using a pair of Kingston KVR100X72C2/256. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message