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Thread: Help Upgrading CPU

  1. #1

    Help Upgrading CPU

    My motherboard supports a P4 Processor up to 2.6GHZ\400FSB. I currently have a P4 @ 1.6GHZ installed. I've been looking online all day long trying to find a compatible 2.6GHZ\400FSB processor, but I keep running into 533FSB\800FSB Processors! So, What I was wondering was, would it be possible to use a 533FSB or 800FSB processor for a board intended for a 400FSB processor @ 2.6 GHZ? ....Any help would be appreciated.

    Thanks,
    Mike

  2. #2
    Regular Member vc_wannabe's Avatar
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    Quote Originally Posted by michaelking View Post
    My motherboard supports a P4 Processor up to 2.6GHZ\400FSB. I currently have a P4 @ 1.6GHZ installed. I've been looking online all day long trying to find a compatible 2.6GHZ\400FSB processor, but I keep running into 533FSB\800FSB Processors! So, What I was wondering was, would it be possible to use a 533FSB or 800FSB processor for a board intended for a 400FSB processor @ 2.6 GHZ? ....Any help would be appreciated.

    Thanks,
    Mike
    Yes its possible but the multiplyer will only go by the 400mhz...

    For example... If there were a 4ghz chip this is what it would run

    400x5= 2.0
    533x5 = 2.6
    800*5 = 4.0
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  3. #3
    Second Most EVIL YARDofSTUF's Avatar
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    Quote Originally Posted by vc_wannabe View Post
    Yes its possible but the multiplyer will only go by the 400mhz...

    For example... If there were a 4ghz chip this is what it would run

    400x5= 2.0
    533x5 = 2.6
    800*5 = 4.0
    Bad math

    The 400mhz system bus chips have an FSB of 100mhz, so a 2.0ghz CPU would have a multi of 20. 533s are 133mhz and 800s are 200mhz.

    Mking, the 400mhz bus P4s are older, it'll be hard to find. Odds are your looking for a P4b, 478 socket.

  4. #4
    The motherboard is: Abit SD7-533

  5. #5
    Second Most EVIL YARDofSTUF's Avatar
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    Abit SD7-533 is a 478 socket. Your best bet is gonna be something like ebay.

  6. #6
    Regular Member vc_wannabe's Avatar
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    Quote Originally Posted by YARDofSTUF View Post
    Bad math

    The 400mhz system bus chips have an FSB of 100mhz, so a 2.0ghz CPU would have a multi of 20. 533s are 133mhz and 800s are 200mhz.

    Mking, the 400mhz bus P4s are older, it'll be hard to find. Odds are your looking for a P4b, 478 socket.


    oh yeah, forgot about the quad pumped thing.. thanks for correcting the info.
    Main: AMD Ryzen R7 3700X, Asus Crosshair Hero VI, Nvidia 2070 Super, 16GB 3200MHz Ram, NVMe, EVGA SuperNOVA 750 P2 PLATINUM, Lian Li PC-V2120

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  7. #7
    Thanks for all the input, but I think I'm just going to go ahead and build another computer...*Long Sigh*

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