Subject: Re: AMD 586 dx4 133 support
To: Jason Thorpe <thorpej@nas.nasa.gov>
From: Michael L. VanLoon -- HeadCandy.com <michaelv@MindBender.serv.net>
List: port-i386
Date: 09/10/1996 19:20:49
>On Tue, 10 Sep 1996 16:33:59 -0500
> "Phil Knaack" <flipk@idea.exnet.iastate.edu> wrote:
> > I am about to purchase an AMD 5x86 dx4 133 chip on a pretty generic
> > motherboard.
> > Will NetBSD work on it, and if so, will it use the chip-specific
> > enchancements? I don't know what they are, but I assume there are some.
>A friend runs NetBSD on an AMD 5x86 ... it's important to note that it
>seems to behave like a 486, just much faster. (i.e. it appears as a
>486-class CPU).
It *IS* a 486. It just has a 16KB write-back cache (normal 486s are
8KB write-through) and can be run 4x clock, where "normal" 486s are
1x-3x.
>I'm not really certain what, if any, chip specific enhancements there are.
There they are, in all their glory. :-)
I ran one for a few months. It worked fine. Be aware that it's a
3.3-volt part, and if you're plugging it into an old motherboard, you
may need a 5v-3v converter.
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Michael L. VanLoon michaelv@MindBender.serv.net
--< Free your mind and your machine -- NetBSD free un*x >--
NetBSD working ports: 386+PC, Mac 68k, Amiga, Atari 68k, HP300, Sun3,
Sun4/4c/4m, DEC MIPS, DEC Alpha, PC532, VAX, MVME68k, arm32...
NetBSD ports in progress: PICA, others...
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