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Will Sempron 754 run with FreeBSD i386? - FreeBSD

I just got a Sempron 754, will it run under FreeBSD 4.11 i386? I don't have time to reinstall the OS, so if the 754 doesn't run on i386 i'll swop the chip for a socket A. .... or will the 754 be substantially quicker that the equivalent speed Socket A? The machine is being used as a development server. Thanks for your advice Gareth...

  1. #1

    Default Will Sempron 754 run with FreeBSD i386?

    I just got a Sempron 754, will it run under FreeBSD 4.11 i386?

    I don't have time to reinstall the OS, so if the 754 doesn't run on
    i386 i'll swop the chip for a socket A.

    .... or will the 754 be substantially quicker that the equivalent speed
    Socket A? The machine is being used as a development server.

    Thanks for your advice

    Gareth
    Gareth Guest

  2. #2

    Default Re: Will Sempron 754 run with FreeBSD i386?

    Gareth Bailey wrote: 

    Yes, sure
     

    Not really, no
     
    Andrew Guest

  3. #3

    Default Re: Will Sempron 754 run with FreeBSD i386?

    Gareth Bailey wrote: 

    I think you forgot to cc this message to
    freebsd-questions. Anyways, to further
    comment on these issues:

    Sempron cores are identical in Socket A and
    Socket 754 versions. Both support only 32-bit
    instruction sets (i686 in terms of CPUTYPE
    and i386 in terms of MACHINE). Any x86 OS
    will run on Sempron/754 smoothly. Personally,
    I think it's a much better choice than Celeron D.

    Sempron/754 might be a little faster than
    it's Socket A version - but that's _only_
    because of the chipsets for Socket 754 are
    more advanced than Socket A ones. I would
    generally recommend using Sempron/754, as
    you could upgrade to Athlon 64 later and
    FreeBSD/x64 then. On the other hand, s754
    will be deprecated in a few years in favour
    of s939.


    Best wishes,
    Andrew P.
    Andrew Guest

  4. #4

    Default Re: Will Sempron 754 run with FreeBSD i386?

    Thanks for the info Andrew.

    Much appreciated,
    Gareth


    On Apr 4, 2005 3:33 PM, Andrew P. <ru> wrote: 
    >
    > I think you forgot to cc this message to
    > freebsd-questions. Anyways, to further
    > comment on these issues:
    >
    > Sempron cores are identical in Socket A and
    > Socket 754 versions. Both support only 32-bit
    > instruction sets (i686 in terms of CPUTYPE
    > and i386 in terms of MACHINE). Any x86 OS
    > will run on Sempron/754 smoothly. Personally,
    > I think it's a much better choice than Celeron D.
    >
    > Sempron/754 might be a little faster than
    > it's Socket A version - but that's _only_
    > because of the chipsets for Socket 754 are
    > more advanced than Socket A ones. I would
    > generally recommend using Sempron/754, as
    > you could upgrade to Athlon 64 later and
    > FreeBSD/x64 then. On the other hand, s754
    > will be deprecated in a few years in favour
    > of s939.
    >
    > Best wishes,
    > Andrew P.
    >[/ref]
    Gareth Guest

  5. #5

    Default Re: Will Sempron 754 run with FreeBSD i386?

    On Apr 4, 2005 3:33 PM, Andrew P. <ru> wrote: 
    >
    > I think you forgot to cc this message to
    > freebsd-questions. Anyways, to further
    > comment on these issues:
    >
    > Sempron cores are identical in Socket A and
    > Socket 754 versions. Both support only 32-bit[/ref]

    Are you sure?
    The s754 versions have an on die memory controller and a K8 core
    (although with disabled 64-bit mode), which should make it
    significantly faster then the K7 based Sempron on sA.
     

    Even for Sempron?
    Olaf Guest

  6. #6

    Default Re: Will Sempron 754 run with FreeBSD i386?

    Olaf van der Spek wrote: 
    >>
    >>
    >>Sempron cores are identical in Socket A and
    >>Socket 754 versions. Both support only 32-bit[/ref]
    >
    >
    > Are you sure?
    > The s754 versions have an on die memory controller and a K8 core
    > (although with disabled 64-bit mode), which should make it
    > significantly faster then the K7 based Sempron on sA.[/ref]


    Yeah, it appears I got a wrong idea from some poor
    article. As a matter of fact, Sempron/sA is based
    on Barton core, while Sempron/s754 is a K8 sister.
    The latter has an on-chip memory controller and
    SSE2 instruction set supported. They are pretty
    same in all other aspects though, and I still
    suppose the perfomance margin is negligible.

    http://www.amd.com/us-en/Processors/ProductInformation/0,,30_118_11599_11604,00.html
     
    >
    >
    > Even for Sempron?[/ref]

    Yeah, it has been announced a few times, that
    Sempron/s939 will be available somewhen in 2005
    "as market requires":

    http://www.amd.com/us-en/Processors/ProductInformation/0,,30_118_608,00.html


    Best wishes,
    Andrew P.
    Andrew Guest

  7. #7

    Default Re: Will Sempron 754 run with FreeBSD i386?

    On Apr 4, 2005 6:13 PM, Andrew P. <ru> wrote: 
    >
    > Yeah, it appears I got a wrong idea from some poor
    > article. As a matter of fact, Sempron/sA is based
    > on Barton core, while Sempron/s754 is a K8 sister.
    > The latter has an on-chip memory controller and
    > SSE2 instruction set supported. They are pretty
    > same in all other aspects though, and I still
    > suppose the perfomance margin is negligible.[/ref]

    Why do you expect so much performance to be lost compared to the Athlon 64 s754?
    The Athlon 64 s754 is significantly faster than the Athlon XP.
    Olaf Guest

  8. #8

    Default Re: Will Sempron 754 run with FreeBSD i386?

    Olaf van der Spek wrote: 
    >>
    >>Yeah, it appears I got a wrong idea from some poor
    >>article. As a matter of fact, Sempron/sA is based
    >>on Barton core, while Sempron/s754 is a K8 sister.
    >>The latter has an on-chip memory controller and
    >>SSE2 instruction set supported. They are pretty
    >>same in all other aspects though, and I still
    >>suppose the perfomance margin is negligible.[/ref]
    >
    >
    > Why do you expect so much performance to be lost compared to the Athlon 64 s754?
    > The Athlon 64 s754 is significantly faster than the Athlon XP.[/ref]


    I haven't seen any tests, yet I've seen Sempron/Socket-A
    in action and it was impressive. I also have Athlon 64
    and Athlon XP pc's at home and I don't think K8 is
    so superior. In non-sse2 non-very-memory-intensive
    applications it performs better, but not "turbo-charged".

    Besides, AMD is pricing Socket-A Semprons even higher
    than s754 versions. Considering the fact that s754 is
    clocked lower than sA of the same PR, it can be hard
    to determine the speed difference.

    Anyway, I really think there's nothing for us to
    argue about :) Gareth is staying with s754 and we
    should be glad for him :)


    Very best wishes,
    Andrew P.
    Andrew Guest

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