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    Does Win HOME make usage of Core >DUO<?

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by relachs, Mar 27, 2006.

  1. relachs

    relachs Notebook Consultant

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    Heard yes and no.

    edit: i mean Windows XP Home Edition
     
  2. miner

    miner Notebook Nobel Laureate

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  3. relachs

    relachs Notebook Consultant

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    I know it "Supports" in the meaning tha tit just runs.. not features the duo core technology and i didn't find anything when i searched!

    So i still don't know.
     
  4. Amber

    Amber Notebook Prophet NBR Reviewer

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    Its not the operating system that runs the dual core. It is the software. You have to have software that is SMP in order to utilize both processors. Most software on the market only sees one processor at the moment, so it doesn't use both processors. Software that is SMP enable will see both processors and therefore be able to use both at the same time to complete a task (aka multithreading)

    Right now, most software on the market isn't SMP enable, but that should change in the future.
     
  5. ostack

    ostack Notebook Evangelist

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    This from the Intel site, indicates that XP Home Service packs 1 and 2 do Make use of Dual Core, but service pack 2 has more fully featured implementation.

    Intel® Centrino® Duo Mobile Technology supports the following operating systems:

    Windows* XP - (Professional, Home, Media Center Edition, Tablet PC Edition)
    - Service Pack 2:
    > supports dual core funtionality and power management
    > supports Execute Disable Bit
    - Service Pack 1:
    > supports dual core funtionality
    > not natively designed to support dual core power management
     
  6. relachs

    relachs Notebook Consultant

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    i know, software need to be programmed for HyperThreading but like i said in a Forum somebody quoted Microsoft KnowledgeBase and they said that Home Edition does not support 2 CPUs and no HT (see Edit)

    that intel link does not tell exactly for me.

    Edit: i have read that Home does not have 64Bit-Support too, but i do not know how old the page is and if that was enabled with SP2, same with HT-Technology.
     
  7. tullnd

    tullnd Notebook Evangelist

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    Not true. The OS has to support it.

    For example...Win95 did not support multiple processors. You could run software that supported multiple processors on it, but if you had a 2nd processor(and you could even get the machine to run stabily), you couldn't utilize it, as Win95 would not recognize the 2nd processor. Nor would it recognize a dual core processor.

    Now, while WinXP Home doesn't recognize dual processors...it does recognize dual core units and will utilize both cores within the OS, allowing a slight performance bump with some OS features. Of course, as you stated, individual programs have to be written as multi-threaded applications to utilize both processors as well.

    What this should be a hint of, is that dual core processors are NOT equal to dual processors. So while WinXP Home supports dual core...it still does NOT support dual processors. I've just seen a bunch of people post that dual core is the same as dual processors. It's not...it's vaguely similar...but there are plenty of instances where a dual core solution would not perform as well as two single core processors.
     
  8. miner

    miner Notebook Nobel Laureate

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    I dont know what more you need, this sentence(from Intel site) clearly states that Win XP Home supports dual core functionality....

    Windows* XP - (Professional, Home, Media Center Edition, Tablet PC Edition)
    - Service Pack 2:
    > supports dual core funtionality and power management
    > supports Execute Disable Bit
    - Service Pack 1:
    > supports dual core funtionality
    > not natively designed to support dual core power management

    They wouldnt list it as "supports dual core" if it really didnt support dual core processors. They would have a huge lawsuit waiting to happen.

    Also dual processors and dual core are totally different. Dual core is just 2 processing cores on a single socket. Hyperthreading just emulated this feature which Win XP Home does support. Dual processors(2 sockets) OTOH are not supported by Home.

    There are no 64bit versions of Win XP Home. So there is no issue of not being able to support it.
     
  9. relachs

    relachs Notebook Consultant

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    Hmm ok... thanks!