FSB downclock mod on the intel GL960 and GL40 --- useful info for PLL Modders

Discussion in 'Hardware Components and Aftermarket Upgrades' started by naton, Aug 21, 2011.

  1. naton

    naton Notebook Virtuoso

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    Can you explain the steps involved in changing SetFSB registers and what registers to change. This is useful for both the T6**0 and T4*00 CPU series.

    What works on the GM45 might also work on the GL40 and GL960. Those with the GL960 should be able to use this registry hack for 533 -> 667, 667 -> 800 and 533 -> 800, and those with the GL40 can do 667 -> 800. That means that I can run my T4200 at 2.4GHz instead of 2GHz without worrying that it will lock at x6.
     
  2. niffcreature

    niffcreature ex computer dyke

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    No, its not a registry hack. Its still dependent on PLL. I meant the "PLL control registers" in the 'diagnosis' tab of setfsb.

    In other words, I was simply stating you can use CPUs with different FSBs to identify PLL control registers and overclock when the PLL is unsupported. I think this is what setPLL is like?
    Wouldn't help if it was TME locked.
     
  3. moral hazard

    moral hazard Notebook Nobel Laureate

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    That's a good technique.
     
  4. crayonyes

    crayonyes Custom Title! WooHoooo !!

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    I wanttttttttttt

    will X9100 + throttlestop work with unlocked multiplier on 965 chipset :D
    somebody pleaseee try.

    meanwhile I'm bombing rep now, y'all so superr!
     
  5. niffcreature

    niffcreature ex computer dyke

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    Yes, we've established it will probably work now.

    I tried my q9200 on the XPS m1730. No go! :(

    Fortunately I believe both Dell and Acer have a history of locking out quad cores and extreme CPUs even on pm45 notebooks.

    Also, I think I attempted to dowclock it to 667mhz instead of 800. So I'll try it again after I try a t9400 or something.
     
  6. naton

    naton Notebook Virtuoso

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    I've tried two CPUs (FSB 667 and 800) on a laptop equipped with the GL40 and two versions of SetFSB; I don't have any hex numbers in the "PLL Control Register". Does it meant that I can't overclock (i.e push the FSB up)?
     
  7. niffcreature

    niffcreature ex computer dyke

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    You have to click "get FSB". otherwise yes you cant overclock or if it says PLL read error or something like that.
     
  8. moral hazard

    moral hazard Notebook Nobel Laureate

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    You should also try using RWeverything to read the PLL registers (click on the clock generator).
     
  9. naton

    naton Notebook Virtuoso

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    When I press on "get FSB" I got an error: "PLL Byte Error". I didn't had much luck with RW. I don't remember what was the error though. I have to try it again.
     
  10. jedisurfer1

    jedisurfer1 Notebook Deity

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    anyone have info or tried it on a Lenovo T61 or T61p
     
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