From owner-freebsd-questions Thu Dec 14 21:36:04 1995 Return-Path: owner-questions Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id VAA25109 for questions-outgoing; Thu, 14 Dec 1995 21:36:04 -0800 (PST) Received: from genesis.atrad.adelaide.edu.au (genesis.atrad.adelaide.edu.au [129.127.96.120]) by freefall.freebsd.org (8.7.3/8.7.3) with ESMTP id VAA25072 for ; Thu, 14 Dec 1995 21:35:56 -0800 (PST) Received: from msmith@localhost by genesis.atrad.adelaide.edu.au (8.6.12/8.6.9) id QAA29822; Sat, 16 Dec 1995 16:07:17 +1030 From: Michael Smith Message-Id: <199512160537.QAA29822@genesis.atrad.adelaide.edu.au> Subject: Re: Upgrade - CPU, clock? To: gurney_j@efn.org Date: Sat, 16 Dec 1995 16:07:17 +1030 (CST) Cc: d_burr@ix.netcom.com, alan@trickler.uu.silcom.com, questions@freebsd.org In-Reply-To: from "John-Mark Gurney" at Dec 14, 95 08:25:36 pm MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-questions@freebsd.org Precedence: bulk John-Mark Gurney stands accused of saying: > right now I'm running a i486dx33 at 40mhz... and running 70ns ram at 0w/s > if I remeber right... I believe I had to turn of FAST page mode dram > though... but I do have a question... I can get a Cyrix (yes I know.. > they suck) 80dx2... could I run the chip at 80mhz (my motherboard > supports it) but not double it? would there be problems with my IDE You don't understand. You run a DX2/80 at 40MHz, and it doubles internally. > vlbus controller? would my isa bus break? from what I have heard about It would look like a DX/40 to your motherboard. You would most likely have to set the >33MHz VLB jumper, which would then run your VLB at 20MHz. > the motherboard doing to slow down of the chip on doubled and tripled > chips that the cpu is actually rated at the fast mhz but I don't have the > technical background to know... thanks for the help... This is garbled, but basically bogus. > John-Mark -- ]] Mike Smith, Software Engineer msmith@atrad.adelaide.edu.au [[ ]] Genesis Software genesis@atrad.adelaide.edu.au [[ ]] High-speed data acquisition and (GSM mobile) 041-122-496 [[ ]] realtime instrument control (ph/fax) +61-8-267-3039 [[ ]] "Who does BSD?" "We do Chucky, we do." [[