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    can you put a 1066 fsb cpu on a 667 mobo?

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by widj, Mar 6, 2010.

  1. widj

    widj Notebook Enthusiast

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    hey,
    motherboard accept up to T7600 (PBGA479, PPGA478)
    there is a core duo 2450, I have a P7350 , can I put a P7350 on this (BGA479) motherboard?

    the sockets seem to be the same, except the FSB..

    http://ark.intel.com/Compare.aspx?ids=36750,27257,
     
  2. sean473

    sean473 Notebook Prophet

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    no u cannot.. for a few reasons

    1. You have a chipset which supports 667MHz FSB CPU's... if u put a 1066MHz CPU , ur laptop won't boot and ur motherboard might get damaged..
    2. If u have a BGA motherboard , CPU is soldered ot motherboard so it is no swappable...

    Your only option will be to buy a new laptop.
     
  3. Trottel

    Trottel Notebook Virtuoso

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    Can you please clarify? Are you saying you have a computer with a T7600 in it and want to know if you can put a P7350 in it? Where does the core duo T2450 fit in?

    You can't mix and match sockets even if they seem electrically compatible. Also BGA stands for Ball Grid Array, which as sean said means it is soldered and not user replaceable. The balls are tiny balls of solder joining pads on the motherboard to the pads on the bottom of cpu package. PGA stands for Pin Grid Array which means the processor has pins and is socketable, like the majority of laptop processors. The other type used on today's processors is LGA which is the pads on the bottom of the processor that match up to the sort of pin things on the motherboard, but this is desktop only.
     
  4. widj

    widj Notebook Enthusiast

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    laptop currently has T2450, specs says that it supports up to T7600, I have a P7350 "in stock" and would like to know if I can put instead of the T2450
     
  5. ellalan

    ellalan Notebook Deity

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    No, T2450 is socket M cpu and P7350 is socket P cpu.
     
  6. Mastershroom

    Mastershroom wat

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    Neither your chipset nor socket will be compatible.
     
  7. widj

    widj Notebook Enthusiast

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    the acer cpu is not molded! (the 2450 one)
    my point is, if the laptop where the P7350 was accepting the T7600 as the acer is, there there might be a chance it would take the P7350? cpu fsb can adjust themselves to slower speed right?
     
  8. moral hazard

    moral hazard Notebook Nobel Laureate

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    No, they can't (well, not the CPUs you mention anyway).

    The T7600 is socket M, the P7350 is socket P, the pinout is rotated 90 degrees.

    There are so many reasons why it wont work (chipset doesn't support it, BIOS wont support it, wrong socket), please don't try it.
     
  9. crayonyes

    crayonyes Custom Title! WooHoooo !!

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    If you need more people to confirm it can't, take me in LOL
     
  10. Mastershroom

    Mastershroom wat

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    It doesn't matter if the CPU isn't soldered. It's Socket M, which will not physically accept the P7350, which is for Socket P. And your chipset wouldn't support any 1066MHz FSB processors anyway, even if it were Socket P.
     
  11. Amnesiac

    Amnesiac 404

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    Count me in too. Don't do it OP, you'll kill your notebook.

    You know, this reminds me of a guy who tried cramming DDR3 RAM in a DDR2 board in his desktop, physically forcing it in the socket, when it wouldn't fit.

    His desktop was FUBAR'd after that.
     
  12. Mastershroom

    Mastershroom wat

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    I've seen some similar self-upgrades gone horribly wrong...for instance, a guy bought a PCIe graphics card, realized it wouldn't fit in his PCI slots (old motherboard, probably AGP), so he actually cut the contacts off of the graphics card to get it to fit the slot. >_<

    Then there's the guy who put Arctic Silver thermal paste on the pin side of his CPU...man, we should make a thread for this stuff.
     
  13. niffcreature

    niffcreature ex computer dyke

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    hey, so more to the point though, are no P series (all 1066mhz) processors compatible with T series processor sockets or vice versa?
    i was fairly sure some of them were the same thing.
    i've seen some recent sony vaio Z790 with t9900 thats why i ask. the t9900 is 1066mhz though
    is it just your motherboard fsb?
     
  14. moral hazard

    moral hazard Notebook Nobel Laureate

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  15. Mastershroom

    Mastershroom wat

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    T-series processors are all 35W TDP, and include 667MHz, 800MHz, and 1066MHz FSB processors, and use Socket M or Socket P. P-series processors are 25W TDP, and they are all 1066MHz, and all use Socket P. As a general rule of thumb, any laptop that can take P-series processors can also take any T-series processors that use Socket P. Conversely, any laptop that can take 1066MHz T-series processors can also take any P-series processors.

    On the other hand, a laptop that can only take 667 or 800MHz T-series processors will not be able to take 1066MHz T-series, or any P-series processors. Also, any laptop with T-series processors on Socket M will not be able to take any T-series processors on Socket P, nor any Socket P processors. By the same logic, any laptop with a Socket P processor, either T-series or P-series, will not be able to take any Socket M processors.

    tl;dr:
    • T-series: can be 667, 800, and 1066MHz FSB, can be either Socket M or Socket P
    • P-series: only 1066MHz FSB, only Socket P
    If they match up in socket and FSB compatibility, then it'll work.
     
  16. niffcreature

    niffcreature ex computer dyke

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    well, it makes sense now. but socket p is p series in a way, its the only socket for the p series but not the only processor for the socket.

    that and, the fsb is a separate specification that has to be aligned.
    huh. thanks
     
  17. Mastershroom

    Mastershroom wat

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    Pretty much :)

    Sockets absolutely must match up. FSB can be backwards-compatible from the point of view of the laptop, i.e. a laptop that can use 1066MHz processors can almost always take 800MHz as well, and probably 667MHz too. Although this often comes down to BIOS support rather than limitations of the actual chipset.
     
  18. widj

    widj Notebook Enthusiast

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    cool, didn't know that, shame it's not like those DDR memories that are flexible..

    and no I'm not that guy that force things (on computers), that's why I came here in the first place ;)