Date: Wed, 19 Jun 1996 22:15:42 +0200 From: "Julian H. Stacey" <jhs@FreeBSD.org> To: Bill/Carolyn Pechter <pechter@shell.monmouth.com> 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 Message-ID: <199606192015.WAA04017@vector.jhs.no_domain> In-Reply-To: Your message of "Wed, 19 Jun 1996 08:16:15 EDT." <199606191216.IAA24229@shell.monmouth.com>
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Hi, Reference: > From: Bill/Carolyn Pechter <pechter@shell.monmouth.com> > 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/
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