Date: Sun, 23 Jun 1996 18:44:55 -0700 (PDT) From: "Rodney W. Grimes" <rgrimes@GndRsh.aac.dev.com> To: jhs@FreeBSD.org Cc: michaelv@HeadCandy.com, stesin@elvisti.kiev.ua, hardware@FreeBSD.org, gj@FreeBSD.org Subject: Re: Cyrix and AMD chips Message-ID: <199606240144.SAA07440@GndRsh.aac.dev.com> In-Reply-To: <199606231427.QAA14819@vector.jhs.no_domain> from "Julian H. Stacey" at "Jun 23, 96 04:27:21 pm"
next in thread | previous in thread | raw e-mail | index | archive | help
> Hi, Reference: > > From: "Michael L. VanLoon -- HeadCandy.com" <michaelv@HeadCandy.com> > > Subject: Re: Cyrix and AMD chips > > > >From jhs@freebsd.org > > ># Only certainty is: AMD chips are Not always plug compatible. > > > > > I 100% agree -- not always compatible; not to mention the fact > > > that early Enhanced Am486 chips were ummm... say, crap, > > > and non-enhanced ones generally sucked, too -- compared to Intel. > > > > From "Andrew V. Stesin" <stesin@elvisti.kiev.ua> > > I *strongly* disagree. > > Not sure if you disagree with Andrew's bit or my bit, if mine: > A pity you aren't in Munich, I think one of those chips is still in Munich, > I still have those same 2 boards (I bough Gary J's off him a while ago), > I never bet money, but I'd have bet you an indian meal +drinks, > that I could reproduce the failure :-) > > > > What vintage chips are you speaking of? > > Can't remember, Ask Rod Grimes or Gary Jennejohn. Date codes from these chips are: D/C: E6 9431GPF D/C: E6 9429GPD So they look like mid 1994 vintage A80486DX2-66 chips. These chips where fully tested (ran FreeBSD make worlds) in motherboard before they where shipped, so it is/was a MB/chip compatibility problem, and not a chip flaw with respect to the FPU problem. I have only heard of one other case of this, so it is very rare and only seems to inflict boards that where designed before the Intel DX2/66 chip. -- Rod Grimes rgrimes@gndrsh.aac.dev.com Accurate Automation Company Reliable computers for FreeBSD
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199606240144.SAA07440>