From owner-freebsd-alpha Wed Sep 1 17:23:17 1999 Delivered-To: freebsd-alpha@freebsd.org Received: from picnic.mat.net (picnic.mat.net [206.246.122.133]) by hub.freebsd.org (Postfix) with ESMTP id F30841543D for ; Wed, 1 Sep 1999 17:23:14 -0700 (PDT) (envelope-from chuckr@picnic.mat.net) Received: from localhost (chuckr@localhost) by picnic.mat.net (8.9.3/8.9.3) with ESMTP id UAA06994; Wed, 1 Sep 1999 20:23:27 -0400 (EDT) (envelope-from chuckr@picnic.mat.net) Date: Wed, 1 Sep 1999 20:23:27 -0400 (EDT) From: Chuck Robey To: Gary McKinney Cc: obrien@NUXI.com, alpha@FreeBSD.ORG Subject: Re: relative alpha speed In-Reply-To: <002601bef4d8$24abba60$1e00000a@gary2.megabits.net> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-alpha@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Wed, 1 Sep 1999, Gary McKinney wrote: > According to my PC164 motherboard manual (if you consider a thin book a > manual ) the PC164 can be populated with half the memory slots filled > and a jumper set to indicate the data path to the RAM is 128-bits wide. > With all eight slots filled (must be the SAME SIZE SIMMs) and the jumper set > in the "other" configuration the data path is 256-bits wide (which I think > is the configuration of the LX motherboard ([and the EB164 motherboard as > well - have one of them too with the docs...])... I would opt to run all > eight slots as the Memory Manager can then keep the CPU running full speed > (no wait state insertions because the memory data path is too narrow)... I'm going to guess here and say you meant the PC164 only, and not the PC164SX, right? I can't see any such connector called out in the PC164SX's manual. We all have to keep in mind here that the PC164, PC164SX, and PC164LX are all different animals. ---------------------------+----------------------------------------------- Chuck Robey | Interests include any kind of voice or data chuckr@picnic.mat.net | communications topic, C programming, and Unix. 213 Lakeside Drive Apt T-1 | Greenbelt, MD 20770 | picnic.mat.net: FreeBSD/i386 (301) 220-2114 | jaunt.mat.net : FreeBSD/Alpha ---------------------------+----------------------------------------------- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message