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    Panasonic Toughbook CF-48 CPU upgrade.. what can it handle

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by PhyChris, Aug 24, 2008.

  1. PhyChris

    PhyChris Newbie

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    hi i already know my CF-48`s cpu is upgradeable but to what point?
    it came with a 1.4Ghz pentium M 1mb cash 400mhz fsb.
    can i stick a 1.8 centrino in there with 2mb cash and 533mhz fsb ?
    i know that some cf-48`s are centrinos maybe its the same mobo as mine
     
    PhyChris, Aug 24, 2008
    #1
  2. goofball

    goofball Notebook Deity

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    you could either have the 855 chipset or the 910/915 chipset. You should run CPU-Z to see which chipset you have. I'm guessing probably the 855 so upgrades are more limited as I"m pretty sure 855 doesn't support 533FSB natively unlike 910/915.
     
    goofball, Aug 24, 2008
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  3. PhyChris

    PhyChris Newbie

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    yep its the 855
     
    PhyChris, Aug 24, 2008
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  4. naton

    naton Notebook Virtuoso

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    you could use the centrino 1.86Ghz with the intel 855 but it wont run at full speed. It will run as 1.4 Ghz (i.e. 14x100mhz instead of 14x133mhz).
    The bigger cache will give a little boost in comparison with the 1.4ghz you have now.
    The advantage of running the 1.86 @ 1.4 is a cooler system in particular if you undervolt it using RMClock. I used and Pentium M 740 (1.7ghz) with an intel i855. Then I undervolted it. Result the system is so cool that the fun doesn't spin anymore
     
    naton, Aug 24, 2008
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  5. PhyChris

    PhyChris Newbie

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    in that case i could get a 1.7 pentium M 2mb cash 400mhz fsb right??
     
    PhyChris, Aug 24, 2008
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  6. naton

    naton Notebook Virtuoso

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    The 1.7 with the 400mhz or 100mhz effective is a pentium M 735
     
    naton, Aug 24, 2008
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  7. naton

    naton Notebook Virtuoso

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    you could also try to get a faster one from ebay such as:
    Pentium M745 --> 1.80ghz
    Pentium M755 --> 2.00ghz
    Pentium M765 --> 2.10ghz
     
    naton, Aug 24, 2008
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  8. PhyChris

    PhyChris Newbie

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    so that would be faster then the 1.86 centrino right?
     
    PhyChris, Aug 24, 2008
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  9. naton

    naton Notebook Virtuoso

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    yes because the 1.86 you have will work at 1.4ghz only
     
    naton, Aug 24, 2008
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  10. PhyChris

    PhyChris Newbie

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    thank u 4 the quick replys i think im going to get a 1.7 there nice and cheap!!
    2mb cash here i come
     
    PhyChris, Aug 24, 2008
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  11. naton

    naton Notebook Virtuoso

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    that's a good choice
    good luck
     
    naton, Aug 24, 2008
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  12. smoothops

    smoothops Newbie

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    Hello folks, I'm trying to upgrade the CPU on my toughbook CF48. It has a 1.4 Ghz Pentium M 400 Mhz bus with a 1GB L2 cache. I have a 1.5 GB Pentium M 400 Mhz bus with a 2 GB L2 cache to install, but I can't get the original CPU out. It has a small handle that lifts up, but when lifted, the CPU stays tough on the base and I just don't know how to remove it. I would like to get some info before I try the removal, so I don't damage anything. Will you help?
     
    smoothops, Dec 22, 2008
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  13. smoothops

    smoothops Newbie

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    Thanks for your response Naton, I need to remove the old CPU, how do I do that? The handle lifts, but the cpu does not move at all, it seems glued in there. I tried pushing the white base where the CPU mounts towards the handle, but it does not budge. Maybe I did not allpy enough pressure for the fear of damaging the MB.
     
    smoothops, Dec 22, 2008
    #13