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upgrading processor

Discussion in 'Hardware' started by brizzoluk, Jul 19, 2008.

  1. brizzoluk

    brizzoluk Kilobyte Poster

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    Hi all..
    I have a spare pc which i use for practising my skills while im learning them.
    The original processor was a 667MHz celeron which i have just replaced with a 800MHz pentium 3.
    Now this is the first time i have changed a processor so i dont know if i have done it right,
    but when i go into control panel and go into system it is recognising the new processor but only listing it as
    600MHz.
    The system is running better since doing this but why is is only showing it as 600MHz?
    Any ideas people?
     
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  2. hbroomhall

    hbroomhall Petabyte Poster Gold Member

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    This usually means one of two things. Either:
    Your motherboard can automatically recognize processors but can't handle this one as the processor is too new, or
    You need to set the FSB, usually in the BIOS.

    Edit - thinking about it - rather than a different FSB it will probably be a different multiplier.

    Harry.
     
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  3. onoski

    onoski Terabyte Poster

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    It might be that the drives for the processor needs updating on your motherboards BIOS.
     
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  4. brizzoluk

    brizzoluk Kilobyte Poster

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    ok i dont know what a multiplier is :blink
    how do i update the drives on the BIOS?

    I have gone into the bios and the cpu is listed as 600MHz/133MHz which i dont really understand?
     
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  5. UKDarkstar
    Honorary Member

    UKDarkstar Terabyte Poster

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    OK, in the BIOS settings for the cpu is there anything there you can set about processor speed x1.5 etc ?

    This link will give you multipliers on some older processors :

    http://users.erols.com/chare/cpuspeed.htm

    Also, what motherboard is it ? (Make/Model) and what BIOS revision ?
     
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  6. hbroomhall

    hbroomhall Petabyte Poster Gold Member

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    The multiplier is the ratio of the CPU clock speed to the Front Side Bus. Some info here.
    You will cover multipliers in the A+, which I see is part of your WIP.
    This is better known as 'flashing the BIOS'. It involves finding the *exact* model of your motherboard and going to the manufacturers website to see if they have an update for it. I don't normally recommend this for this sort of case as there is a risk in the flash procedure, and the info given by the manufacturer is often insufficient to determine if the upgrade will do what you want.
    This is the ratio I was referring to. In this case a multiplier of 4.5.

    Harry.
     
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  7. brizzoluk

    brizzoluk Kilobyte Poster

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    no there is nothing i can set for the processor apart from enable processor serial number?
    The motherboard is a CUW - AM rev 1.01

    the bios revision is 3.04 8/24/01
     
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  8. brizzoluk

    brizzoluk Kilobyte Poster

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    ok thanks for the info so are you saying that because it has a different multiplier the precessor is not going to operate as fast as it could do?
     
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  9. hbroomhall

    hbroomhall Petabyte Poster Gold Member

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    This is an old HP Pavilion? If so these sort of units have very little in the way of BIOS changes that can be done.

    Check on the HP site to see if any upgrades are available.

    I see on the HP website for this machine:
    Harry.
     
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  10. UKDarkstar
    Honorary Member

    UKDarkstar Terabyte Poster

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    The CUW motherboards are by ASUS and drivers etc are listed here :

    http://support.asus.com/download/download.aspx?SLanguage=en-us

    It will also give you cpu info (see left hand side menu) so you can check if the processor is compatible with the motherboard.

    From memory the celeron you have will be a 400 fsb whilst the full pentium will be a 533. You may also need compatible ram as you're upgrading.
     
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  11. UKDarkstar
    Honorary Member

    UKDarkstar Terabyte Poster

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    No, it may not work at all - see my previous post and check the info for your specific motherboard
     
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  12. brizzoluk

    brizzoluk Kilobyte Poster

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    Yes its an old old old HP Pavilion but its good for messing about with as its worthless!
    I just looked up the motherboard myself and saw the max processor speed is 766MHz so surely with an 800MHz it should work at the motherboards max?
    I will look on the HP site for any updates tho thanx.
     
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  13. UKDarkstar
    Honorary Member

    UKDarkstar Terabyte Poster

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    Err, no, it doesn't quite work like that.

    Is it an HP machine then ? when I Googled CUW motherboards it came up with ASUS ?
     
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  14. brizzoluk

    brizzoluk Kilobyte Poster

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    yes it is a HP machine and the motherboard is the original and i have looked on the website for my motherboard and it says that it is compatible with a pentium 3 so i'll have to haul the machine into the other room where my internet connection is to check for any updates.
     
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  15. UKDarkstar
    Honorary Member

    UKDarkstar Terabyte Poster

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    Try to get a manual for the motherboard - there may be jumpers to configure !

    If you get it wrong something may go "pop" !
     
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  16. brizzoluk

    brizzoluk Kilobyte Poster

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    Thanks for all the help guys i'll let you know how i get on.
     
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  17. dales

    dales Gigabyte Poster

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    Something of that age I would expect that you would need to configure jumpers on the physical motherboard, dont think mobo's really autoconfigured the cpu speed for a couple or 3 years after that.
     
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