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P4 types whats up with that?

Discussion in 'Processors and Motherboards' started by CheezHead, Dec 29, 2003.

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  1. CheezHead Newcomer, in training

    Other than the FSB are they all compatible to one another??

    the HT P4's are 800mhz.,my 1.5 400mhz FSB is a Willemett<~spell check,Prescott or Northbrige??
    Whats the Difference and how can i tell what i have??
    CheezHead, Dec 29, 2003
    #1

  2. iss TechSpot Chancellor

    iss, Dec 30, 2003
    #2

  3. NoisySilence Newcomer, in training

    The Willamette was available in both sockets ( 423 & 478 ). The only difference is mainly the 256K of L2 cache for the W ( instead of 512 for the N ) & the 0.18 manufacturing process.
    NoisySilence, Dec 30, 2003
    #3

  4. CheezHead Newcomer, in training

    So the 478 pin 400mhz Willamette is totaly compatible with a 400/533mhz mobo saying "Northwood only"??
    CheezHead, Dec 30, 2003
    #4

  5. NoisySilence Newcomer, in training

    It could be that certain newer boards only support CPUs with 133FSB & up, so that would rule out any Willamette since they always used the 100FSB.

    I can't say I've seen boards that only supported the Northwood though. Maybe they didn't specify Willamette since not many people still use them.
    NoisySilence, Dec 30, 2003
    #5

  6. CheezHead Newcomer, in training

    Ok,Thanks for the info I think ill focus on getting another cpu all togeather.
    CheezHead, Dec 30, 2003
    #6

  7. CheezHead Newcomer, in training

    In Further probing into mobo specs, it seems the CPU speed is a major factor in witch the mobo supports. Like the board im looking at says "Intell P4 400mhz 1.7~2.6,,Intell Celeron P4 400mhz 2.0 or faster.

    Go figgure.
    What a drag
    CheezHead, Dec 30, 2003
    #7

  8. tripleione Newcomer, in training

    They are not compatible. Willamet and Northwood have different number of pins on the CPU. Thus, if you try to fit a Northwood into a Socket 423-based board it will not work.

    You could buy a 423->478 adapter, but it's best just to buy a new motherboard.
    tripleione, Dec 30, 2003
    #8

  9. NoisySilence Newcomer, in training

    There are Willamette CPUs in the S478 format, it's not a problem with the pin count.
    NoisySilence, Dec 30, 2003
    #9

  10. CheezHead Newcomer, in training

    at this point all i can do is get a faster CPU the one i have is basicly a poormans P4
    Thanks alot for the info.
    CheezHead, Dec 30, 2003
    #10

  11. tripleione Newcomer, in training

    True, but chances are he has a 423 pin P4 anyway.
    tripleione, Dec 31, 2003
    #11
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