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overclocking(see sig)

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  • 13-12-2004 5:03pm
    #1
    Ave
    Closed Accounts Posts: 189 ✭✭


    I seem to have hit a wall trying to overclock my CPU.

    It wont go over 250mhz stably, no matter how much I relax the timings on my ram(guaranteed to do 266mhz @ 3-4-4-8 2.9v)

    Tried setting HTT to 3(currently 4*250)

    Tried setting CPU multi to 4(normal is 9)

    Upped CPU voltage to 1.8(does 250*9 at 1.45)

    Updated to latest bios.

    Any ideas?


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    #2
    gline
    Registered Users Posts: 6,630 ✭✭✭gline


    maybe that is the limit for your cpu on the cooling your using


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    #3
    Ave
    Closed Accounts Posts: 189 ✭✭Ave


    gline wrote:
    maybe that is the limit for your cpu on the cooling your using
    That makes no sense....

    It runs at 9*250 fine under load, but running at 4*251 idle is impossible because of cooling?


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    #4
    Dempsey
    Registered Users Posts: 20,553 ✭✭✭✭Dempsey


    My P4 wont go to 3.4+GHz. I can get 3.37 (I need to up the Vcore to 1.65 to get that) then one more increment of the FSB puts it over 3.4 but it fails stability tests. Every chip is different and yours may just not be able to go any higher


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    #5
    Ave
    Closed Accounts Posts: 189 ✭✭Ave


    Dempsey wrote:
    My P4 wont go to 3.4+GHz. I can get 3.37 (I need to up the Vcore to 1.65 to get that) then one more increment of the FSB puts it over 3.4 but it fails stability tests. Every chip is different and yours may just not be able to go any higher
    Yes, however, the limit being 250mhz, regardless of multiplier, implies it's an artificial limit of some kind.


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    #6
    Dempsey
    Registered Users Posts: 20,553 ✭✭✭✭Dempsey


    Whats the highest frequency that the motherboard's clock can generate?


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    #7
    Ave
    Closed Accounts Posts: 189 ✭✭Ave


    Dempsey wrote:
    Whats the highest frequency that the motherboard's clock can generate?
    People can get 290mhz on this motherboard, quite frequently.


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    #8
    neokenzo
    Closed Accounts Posts: 1,321 ✭✭✭neokenzo


    Have you tried running your ram at a lower speed? You should be able to overclock more than that imo.


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    #9
    Ave
    Closed Accounts Posts: 189 ✭✭Ave


    neokenzo wrote:
    Have you tried running your ram at a lower speed? You should be able to overclock more than that imo.
    no matter how much I relax the timings on my ram(guaranteed to do 266mhz @ 3-4-4-8 2.9v)


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    #10
    neokenzo
    Closed Accounts Posts: 1,321 ✭✭✭neokenzo


    Not relaxing the timings on it but rather the speed, ie, instead of running 400Mhz, try 333Mhz. Just to eliminate that your ram is holding you back.


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    #11
    Ave
    Closed Accounts Posts: 189 ✭✭Ave


    neokenzo wrote:
    Not relaxing the timings on it but rather the speed, ie, instead of running 400Mhz, try 333Mhz. Just to eliminate that your ram is holding you back.
    Tried, but the K8N doesnt have a proper divider, you can set the memory speed to 400/333/auto manually, but it doesnt seem to keep to them :/

    But it's Samsung TCCD memory, it wont be holding me back :)


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    #12
    gline
    Registered Users Posts: 6,630 ✭✭✭gline


    gline wrote:
    maybe that is the limit for your cpu on the cooling your using
    sorry didnt read it proper


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    #13
    BloodBath
    Registered Users Posts: 10,299 ✭✭✭✭BloodBath


    It could be a number of things, what exactly happen when you try to go higher? Blue screen? Power down?

    Maybe try 1 stick of ram at a time, you may have got one dodgey.


    BloodBath


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    #14
    Ave
    Closed Accounts Posts: 189 ✭✭Ave


    stable.png

    Was running stable at this through prime95 and some other testing methods - until my harddrive failed :)

    Coincidence?


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