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    T61 - PAE not working under Vista 32b?

    Discussion in 'Lenovo' started by kelt, Feb 12, 2008.

  1. kelt

    kelt Newbie

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    Hey,

    I've bought 4 GB RAM and tried to utilize the PAE setting in order to get all of my RAM working. Alas, it didn't work out. Vista still announces only 3.06 GB.

    Is there any other way how to do it except putting up 64b Vista? Is my conclusion true that PAE does not work on T61's?

    Thanx
     
    kelt, Feb 12, 2008
    #1
  2. Greg

    Greg Notebook Nobel Laureate

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    PAE does not allow for all 4GB, it isn't meant for that. PAE is only used to enable XD protection in processors.

    You need 64b to get 4GB.
     
    Greg, Feb 12, 2008
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  3. Acorn

    Acorn Notebook Evangelist

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    Vista 32bit = 3 gb max. Install sp 1 when its out, then it will show 4gb although you can only use 3gb.
     
    Acorn, Feb 12, 2008
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  4. AceOfSpades

    AceOfSpades Notebook Consultant

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    kelt, why don't you want to install a 64-bit version of Windows?
     
    AceOfSpades, Feb 12, 2008
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  5. kelt

    kelt Newbie

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    Ace,

    that'd mean a clean install.... maybe when I've got enough time.

    Thank you all
     
    kelt, Feb 12, 2008
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  6. bsodder

    bsodder Notebook Evangelist

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    PAE does allow addressing 4 gb - that is its primary purpose - Physical Address Extension (to 36 bits from 32 bits). It also allows XD protection. Microsoft decided not to allow PAE (which is Intel software/drivers) to function on any of its kernels, except Server 2000 and 2003, because that is part of its long range marketing plan for 64 bit OS. The XD part will install and work on XP, but only with the appropriate Intel chipsets.
     
    bsodder, Feb 12, 2008
    #6