From owner-freebsd-chat Thu Jun 20 14:41:05 1996 Return-Path: owner-chat Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id OAA11806 for chat-outgoing; Thu, 20 Jun 1996 14:41:05 -0700 (PDT) Received: from vector.jhs.no_domain (slip139-92-42-134.ut.nl.ibm.net [139.92.42.134]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id OAA11695; Thu, 20 Jun 1996 14:40:15 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by vector.jhs.no_domain (8.7.5/8.6.9) with SMTP id WAA04017; Wed, 19 Jun 1996 22:15:43 +0200 (MET DST) Message-Id: <199606192015.WAA04017@vector.jhs.no_domain> X-Authentication-Warning: vector.jhs.no_domain: Host localhost [127.0.0.1] didn't use HELO protocol To: Bill/Carolyn Pechter cc: michaelv@HeadCandy.com (Michael L. VanLoon -- HeadCandy.com), freebsd-hardware@freefall.FreeBSD.org, freebsd-chat@freefall.FreeBSD.org Subject: Re: Cyrix and AMD chips From: "Julian H. Stacey" Reply-To: "Julian H. Stacey" Organization: Vector Systems Ltd. Address: Holz Strasse 27d, 80469 Munich, Germany Phone: +49.89.268616 Fax: +49.89.2608126 (later) Web: http://www.freebsd.org/~jhs/ Mailer: EXMH 1.6.7, PGP available In-reply-to: Your message of "Wed, 19 Jun 1996 08:16:15 EDT." <199606191216.IAA24229@shell.monmouth.com> Date: Wed, 19 Jun 1996 22:15:42 +0200 Sender: owner-chat@FreeBSD.org X-Loop: FreeBSD.org Precedence: bulk Hi, Reference: > From: Bill/Carolyn Pechter > Subject: Re: Cyrix and AMD chips > > > [Maybe] michaelv@HeadCandy.com (Michael L. VanLoon -- HeadCandy.com) > > > > AMD chips are awesome. They will work correctly with every > > motherboard that runs correctly with Intel chips. Categorically Wrong ! 2 Gigabyte GA-486US came with Intel 486 33MHz, ran error free for years, on multiple OSs, but did not work with 2 pre-tested AMD 486-66 (npx probe failed on the Gigabyte boards), then systems did (& still do) work again with Intel 486-66. ( gj@freebsd.org was owner of other board at the time of test. Rod knew AMD part numbers. ) > I've been told that the only thing that should work for sure > is the Intel 486DX2/66. Probably a fairly good chance :-) I guessed our observed phenomena might have been something to do with the AMD having thinner power bus lines, & relying on a motherboard which was also thinner than ideal, & that could deliver enough power for a 33, but not for a 66, but I have nothing to prove that, Only certainty is: AMD chips are Not always plug compatible. Julian -- Julian H. Stacey jhs@freebsd.org http://www.freebsd.org/~jhs/