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  1. #51
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    Default Re: M11x clock generator ICS9LPRS387BKLF

    Is it a BIOS option you change to overclock?
    Also what BIOS do you have (any chance it's AMI)?
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    Default Re: M11x clock generator ICS9LPRS387BKLF

    Quote Originally Posted by rpg-XPS View Post
    I think the SU7300 could handle 2.13GHz sufficiently cooled
    If FSLC is gated by the bios AND if you did figure out how to send a 1/0/0 to fslc/fslb/fsla to set 333Mhz mode, then you'd need sufficient voltage to be able to run at that overclock. BGA CPUS can't be voltmodded easily, though I did see the Acer Timeline folks modify the voltage regulator instead. In which case, *if* rmclock has higher voltage settings AND you can disable speedstep in the bios, it might be able to boot your OS up until the point that rmclock can take over with higher voltage and enabling speedstep.
    Last edited by User Retired 2; 17th March 2010 at 07:08 PM.

  3. #53
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    Default Re: M11x clock generator ICS9LPRS387BKLF

    You can disable speed step in the BIOS. And to overclock it is a bios option simply enable/disable
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  4. #54
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    Default Re: M11x clock generator ICS9LPRS387BKLF

    Quote Originally Posted by moral hazard View Post
    Is it a BIOS option you change to overclock?
    Also what BIOS do you have (any chance it's AMI)?
    Yes, OverClock mode is either "Enabled" or "Disabled" and it's done through the BIOS. It's a Phoenix BIOS.
    Quote Originally Posted by nando4 View Post
    If FSLC is gated by the bios AND if you did figure out how to send a 1/0/0 to fslc/fslb/fsla to set 333Mhz mode, then you'd need sufficient voltage to be able to run at that overclock. BGA CPUS can't be voltmodded easily, though I did see the Acer Timeline folks modify the voltage regulator instead. In which case, *if* rmclock has higher voltage settings AND you can disable speedstep in the bios, it might be able to boot your OS up until the point that rmclock can take over with higher voltage and enabling speedstep.

    A tough ask. Suggest look at TME-disabling the PLL and software programming it. Though *some* ICS PLLs don't allow that at all, like the 72-pin ICS954305EKLF used in the DV2000, datasheet and details here.
    Ah yes, of course. Forgot about the VCore. I doubt it would make it to the OS @ 2.16GHz on stock voltage. It does seem tough, unfortunately the information you linked to above is a little out of my depth. With IDT not releasing the datasheet to us, it's really limiting our options.
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    Default Re: M11x clock generator ICS9LPRS387BKLF

    Quote Originally Posted by DR650SE View Post
    You can disable speed step in the BIOS. And to overclock it is a bios option simply enable/disable
    Can you enable any higher voltages in rmclock than the default ones?
    Last edited by User Retired 2; 17th March 2010 at 07:10 PM.

  6. #56
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    Default Re: M11x clock generator ICS9LPRS387BKLF

    BIOS


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    Default Re: M11x clock generator ICS9LPRS387BKLF

    Quote Originally Posted by nando4 View Post
    FSLC might be pin 23 like it is on the 72-pin ICS954305EKLF PLL here.
    Just curious, say if it wasn't pin 23, could we do irreversible damage?
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    Default Re: M11x clock generator ICS9LPRS387BKLF

    Quote Originally Posted by rpg-XPS View Post
    Just curious, say if it wasn't pin 23, could we do irreversible damage?
    Whoops.. other problem. Your GM45 chipset supports only up to 166/200/266Mhz FSB as determined by BSEL/FSLx pins (see series-4 chipset datasheet). Means no point in BIOS hacking as they would not be gating the FSLC pin. Seeing 333Mhz FSB would render the MCH disabled.

    [ redundant - deleted ]

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    Last edited by User Retired 2; 17th March 2010 at 07:06 PM.

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    Default Re: M11x clock generator ICS9LPRS387BKLF

    Just realized my post was stupid; edited
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    Default Re: M11x clock generator ICS9LPRS387BKLF

    After sending about seven e-mails to various departments of IDT requesting the datasheet for this PLL, and being told (9 days ago) that it was a "custom device" and that "it can't be shared", I get this interesting message...
    Quote Originally Posted by IDT
    Hi Richard,

    Kindly refer to the attachement above.

    Thank you
    Straight and to the point! Now why couldn't Kyle be like this?
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