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    PLL Pinmod Overclocking Methods and Examples

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by moral hazard, Jun 24, 2009.

  1. whitrzac

    whitrzac The orange end is cold...

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    is something like this what your talking about?

    [​IMG]


    when I use ICS9LPR501SGLF it will read the "stock" fsb fine, but when I change it it goes from 266ish to 800+ without changing anything...
     
  2. moral hazard

    moral hazard Notebook Nobel Laureate

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    Did you try changing bit1 of byte 0?

    Did it cause the lockup or not?
     
  3. whitrzac

    whitrzac The orange end is cold...

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    that's the first column and bottom value, right? If so, I changed it from 2F to 1F
     
  4. moral hazard

    moral hazard Notebook Nobel Laureate

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    No.

    This might help you understand:
    http://i896.photobucket.com/albums/ac167/moral_HaZaRd/m1999mhz.png

    The values you see are bytes, they are made up of 8bits.

    If you click on the first byte (first column first row), you will see the bits that make up that byte in the box next to the lable "Bin". Those bits will be in the following order:
    [bit7][bit6][bit5][bit4][bit3][bit2][bit1][bit0]
     
  5. whitrzac

    whitrzac The orange end is cold...

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    yes I am able to change it without locking up, once I change it, the byte goes from 05 to 01

    EDIT: derp... forgot that it was in a diffrent order...

    it goes from 05 to 00
     
  6. moral hazard

    moral hazard Notebook Nobel Laureate

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    no, it should go from 05 to 07.

    Remember you are changing bit 1 of byte 0.

    Before:
    Byte 0 = 05 = 000001 01
    --------------76543210

    After:

    Byte 0 = 05 = 000001 11
    --------------76543210
     
  7. whitrzac

    whitrzac The orange end is cold...

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    ok, now I get it...

    my laptop locked up when I changed it...
     
  8. moral hazard

    moral hazard Notebook Nobel Laureate

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    Well there is the problem.

    You can tell that to abo, he will give you a test version of setfsb that wont change that bit. He will probably ask for a donation.

    You can also try using clockgen.
     
  9. whitrzac

    whitrzac The orange end is cold...

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    will do...

    how much is the usual "donation"?
     
  10. moral hazard

    moral hazard Notebook Nobel Laureate

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    500 JPY for activation key, so probably double that if you ask for support.
    So around $10USD, but he will usually set the donation amount before he helps, so it will be clear.

    http://www13.plala.or.jp/setfsb/
     
  11. whitrzac

    whitrzac The orange end is cold...

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    I sent him an email...

    "clockgen" doesn't have anything close to my PLL...
     
  12. moral hazard

    moral hazard Notebook Nobel Laureate

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    Try anything that starts with ICS in clockgen, also you can try CPUcool.

    And you can try other PLLs in setfsb, anything that has the same registers as your PLL could possibly work.
     
  13. marcos silva

    marcos silva Notebook Enthusiast

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    someone know how to overclock a acer 6930g with a p7450 and the chipset is a pm45 makalu board. because in all of the theards that i read noone could overclock this notebook, they say that is impossible.
    There is anyone that can do magic in this forum i would apreciate the help.

    Sorry about my english ;)
     
  14. whitrzac

    whitrzac The orange end is cold...

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    abo sent me an updated setfsb, but I can't open it because I get "Error 3" :(
     
  15. moral hazard

    moral hazard Notebook Nobel Laureate

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    Never heard of that before.
     
  16. whitrzac

    whitrzac The orange end is cold...

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    after a few different versions of setfsb, abo says that its unpossible to overclock it... :(
     
  17. ghoula

    ghoula Notebook Guru

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    Hi!

    Succesfully done the FSLx mod to my friend's GX740 and it got me thinking.

    Montevina platform can be modded the same way to 333, but cant find a datasheet for the pll ic. My GT725 has the same pll as the GX740, but cant locate FSLa pin without the sheet.

    At 24% OC my ram is a bit unstable with CAS5 (2x4G), but maybe with a slight overvolt it could be. CAS6 is working fine. If someone, with greater skills than mine could take look at the voltage regulator for ram, would be nice.

    Finally i noticed, that even when the GPU and CPU is burning up at 90-95 Celsius, the fan only got 4.15 volts. Probably with a modified EC firmware we can make it to give 5v to the fan, at 80C to make sure,it doesn't melting down.

    Br,
    Adam
     
  18. moral hazard

    moral hazard Notebook Nobel Laureate

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    Hi,

    I have a similar notebook (MSI GT627, Montevina platform).

    Is your voltage regulator the same as mine:
    http://forum.notebookreview.com/har...137-ram-volt-mod-anyone-done.html#post6450080

    For me it looks like I have to mod R4 or R5 to increase the voltage for the ram. I did not try it yet.

    I did try connecting my fan to 5v, was very loud but great cooling. I have to add a switch...

    If you can figure out the EC mod, please post how it's done.

    PLL pinout on page 16:
    http://rapidshare.com/files/431187602/ics9lprs113aklf_page_16_.pdf
     

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  19. ghoula

    ghoula Notebook Guru

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    Thank you for the quick answer, and the links.

    Yes, it is very similar to yours. Will check later for the regulator ic.
    My plan B was to connect the fan directly to 5V, but still looking into a more sophisticated solution. :)
    Checked the PLL diagram, but it's bit out of my range. If someone could pinpoint me, to unsolder this, or connect this to that, would be a real gold for me. Need to dismantle the machine, and take pictures, but if I'm reading it right, have to solder off the resistor, which is pulling the FSLc pin to ground. But according to this diagram, FSL pins also used as FSLa/USB_48MHz, FSLb/PCICLK3_2X, FSLc/REF0_2X.
    Wouldn't it be a problem if a disconnect this? It's leading to ICH_14M_ICH.
    Thanks in advance!

    Regards,
    Adam
     
  20. moral hazard

    moral hazard Notebook Nobel Laureate

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    PCICLK3 could be unused, right?


    I don't know how you get around that problem with FSLa/USB_48MHz and FSLc/REF0_2X.
     
  21. niffcreature

    niffcreature ex computer dyke

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    I'm looking for some sophisticated fan mods as well.
    Not to throw the off topic too much... but I was thinking of finding a USB controlled voltage regulator, able to link with software temps. it shouldnt be too difficult.
     
  22. moral hazard

    moral hazard Notebook Nobel Laureate

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    If you find one, please post a link.

    The few I have found were too big to fit inside a notebook.
     
  23. niffcreature

    niffcreature ex computer dyke

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    well one thing I thought of that was pretty crazy is that you could do it with USB sound card + opamp.

    You cant adjust the 5v of usb though by something you are powering with the same 5v. So you'd have to do it through the 19v or 20v. this is ok with me cause then I could use a 12v fan, and you can usually get this through the LCD inverter cable.

    but anyway yeah i dont know anything about opamps and how easy it would be.
     
  24. ghoula

    ghoula Notebook Guru

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    So far not looking good... :cool:
    Removed R794, which is pulling down FSLc from pin 71 to ground via 10K resistor.
    Nothing changed, but trace is also routed to R721, removed that, and it's bricked. Need to get a solder station, with smaller head to solder it back. :) So this way is a dead end. Maybe if I pull it up to 1V like in the link on 1st page, but not sure, how it will affect the Ref_clk, which is going trough R721.

    Edit:
    Checked SLG8SP553V datasheet, FS_c pin is also used as ref_0, so pulling it up can be the way...
     
  25. moral hazard

    moral hazard Notebook Nobel Laureate

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    Thanks for the update, if pulling FSLc high works, please let me know so I can do the same thing.
     
  26. ghoula

    ghoula Notebook Guru

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    Soldered it back, but it's still doesn't starting up. :mad:
    Time to look for a replacement motherboard...
     
  27. moral hazard

    moral hazard Notebook Nobel Laureate

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  28. ghoula

    ghoula Notebook Guru

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    Yes, but since I'm in Europe, it's even harder to find.
    Found a used gx720, that should do the trick, will have spare parts too.
    Yes, measured everything with DMM, contact is good, but still dead.
     
  29. Ian_

    Ian_ Newbie

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    hello guys,
    I need some help, please!

    I have and Acer Aspire 6920G with T5750@2Ghz, and I want to oc it.
    My clock generator is ICS9LPRS365BGLF and as I see I have TME enabled PLL.
    I opened up the machine, found the chip (under the keyboard).
    The first contact of pin 4 is a resistor.
    Should I remove the resistor or cut the way to it and then ground pin4?
    Or is it enough when I just ground pin4 for ex. AC plug ground?
    I attached my PLL status from Setfsb, beacuse I'm not sure wich bit I have to check to see what happen when I disable PCI2/TME.
    Can someone check it for me?

    Thanks!! :D
     

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  30. moral hazard

    moral hazard Notebook Nobel Laureate

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    Change bit 2 of byte 2 to 0. That will disable PCI2.

    With the pin mod, I would first just try removing that resistor you are talking about. If the notebook wont boot, then ground that pin (you might want to use the old pad that the resistor was connected to.
     
  31. niffcreature

    niffcreature ex computer dyke

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    MH and ghoula, are you aware that you can flash your RAM to make it downclock with the same timings?

    I read all about your experiences and how it wont boot to cas 7, I do understand why you both think the RAM voltage hardmod is necessary.
    I really think that if you clock it even lower at 533mhz and keep it at cas 6 then you should have greater overclocking potential. You do not need a profile to do this although there may be a preset in thaiphoon burner.

    Of course there is always something I could have missed but I think this will solve the problem... If it does I am really sorry I didn't mention it earlier, ghoula, hope you can recover that board...

    I have 400mhz cas 6 ram right now.
     
  32. moral hazard

    moral hazard Notebook Nobel Laureate

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    Well I am running @667mhz with 800mhz timings (actually even higher, 6-8-8-24).

    Can't go to 533mhz because PM45 chipset doesn't support it (tried it and notebook wont POST).

    So I'm already doing the best I can. Only options are more voltage or new ram.
     
  33. niffcreature

    niffcreature ex computer dyke

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    We have the same chipset. How is my RAM running at 400mhz with cas 6?

    It wouldn't help you to run your RAM like this?
     
  34. moral hazard

    moral hazard Notebook Nobel Laureate

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    Can I see a screenshot of CPUz?

    I think you're talking about the real frequency (400mhz), while I would call that 800mhz effective.

    So really I'm running @333mhz (667mhz effective) with CAS6. Can't boot with 266mhz (533mhz effective) ram.
     
  35. niffcreature

    niffcreature ex computer dyke

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    Ahh I finally understand. Why does no software show your effective clock. :eek:

    Of course I should probably give up on advising you now, but I heard something that makes me think 1066mhz RAM may not help you. If its cas7 at 1066mhz and then when it downclocks to 800mhz wont it will tighten the timings to cas6 and you will be back where you started?
    Other people have discussed and come to this conclusion, at least with ddr3 RAM, but perhaps you have something else in mind or it could help you in some other way. I'm not sure.

    You could always just find a different ES CPU that has 800mhz FSB and try messing around with that...
     
  36. moral hazard

    moral hazard Notebook Nobel Laureate

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    That is probably the case with ddr3 ram, but I have seen the SPD from DDR2 1066mhz sodimm ram and it had cas 6 as the max.

    I'm pretty sure there is no DDR2 sodimm ram out there with a cas of 7, I looked through almost every SPD dump using the thaiphoon burner browser.

    If I use a CPU with an 800mhz FSB, it changes the FSB : DRAM ratio in a bad way, makes it even harder.

    But yeah, keep the suggestions comming, there might be a way to sort this ram problem out.

    BTW if you're going to try the BSEL mod, I suggest you mod your bios to stop it locking the EIST bit. That might give you a chance to change the multiplier if it's locked to the min value.

    I would do it with my bios, but I can't find the right part to change.
     
  37. niffcreature

    niffcreature ex computer dyke

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    Ah, that makes sense. So you could downclock it all the way from 1066 to 667 and keep the cas 6 for a lot of stability.

    Yea 800mhz fsb CPUs in my laptop refuse to FSB overclock at all. Of course my PLL is totally unsupported.

    I was mostly thinking along the lines of BSEL mods.
    Do you think an early stepping ES CPU would not lock to lowest multis, even if it has EIST?

    I'm a bit wary of modding my BIOS, I've never done that before.
     
  38. moral hazard

    moral hazard Notebook Nobel Laureate

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    I tried the BSEL mod with a T7300 (OEM, took it to a 1066mhz FSB) and with my SP9400 (took it to an 800mhz FSB), both times the multi was locked.

    Can you change your EIST bit with throttlestop right now, or is it locked?

    Someone should try the BSEL mod with a dell notebook and see if they can re-enable EIST after the BSEL mod with throttlestop, since dells seem to leave the EIST bit unlocked.
     
  39. User Retired 2

    User Retired 2 Notebook Nobel Laureate NBR Reviewer

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    Did a BSEL mod on my 2510P's U7600 via the underside resistors, overclock from the 133Mhz FSB up to 166Mhz and 200Mhz. In both cases, the CPU was locked to x6. I also have EIST unlocked in the BIOS, just like the Dell bios.

    The *Intel chipset* locks the EIST bit when it samples a different BSEL than the one supplied by the CPU. It's Intel's anti-overclocking feature, so we have to PLL mod to get around it. I would have loved 166Mhz FSB with my U7600. Those luck SU4100/SU7300 folks don't get locked multis going from 200->266Mhz.
     
  40. niffcreature

    niffcreature ex computer dyke

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    You're the one who has suggested before to me that an ES CPU might not downclock.
    If I found one that actually doesn't support EIST just like the celerons, would it work?
    Just wondering if that was your entire mentality behind it.

    Maybe there is a way to hardmod EIST permanently off.......
     
  41. Dufus

    Dufus .

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    Did you find some PC2-8500 SODIMM's :eek: Link please.

    AFAIK PM45 should support CAS 7 for DDR2, possibly higher however the JEDEC standard may only support up to 6. In other words using the SPD method to set CAS 7 is not going to work, you need the BIOS to do it for you. Happy hacking :D.
     
  42. moral hazard

    moral hazard Notebook Nobel Laureate

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    My notebook does have settings for ram timings in the bios, I did try changing the cas to 7 there, but got the same problem.

    The SPD dump for 1066mhz ram I found using the thaiphoon burner browser. I don't have a link to the actual ram.
     
  43. Dufus

    Dufus .

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    Well that sucks having the option but not working.
     
  44. whitrzac

    whitrzac The orange end is cold...

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    I wasn't able to to FSB overclocking, so I picked up an ES q9100 for my laptop....

    I have the qavk version, and it is overclock-able via throttlestop :cool:


    with no OC, it gives a 7.1 win 7 rating, along with bumping my memory from 6.1 to 7.1... memory is Hyperx PC8500
     

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  45. Ian_

    Ian_ Newbie

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    MH thanks for your reply!

    I checked the TME status again ref. to the clock gen. datasheet, and my TME is disabled and I can disable PCI2 too with setfsb.
    But when I move the slider and press setfsb it moves back to its original position.
    I red all of this topic and one memeber has the same previously with the same aspire 6920G.
    I decide to pinmod the fsl to get higher fsb. My cpu is running 166mhz currently and I need 200 mhz, where I should mod the fsla to 0 to get this freq.
    But fsla is dual meaning pin, 48Mhz fixed usb clock/3.3V for cpu freq. selection
    Can I make this with just ground pin 10?
    Or beacause I have TME disabled can I mod the freq. via BSEL on cpu socket?

     
  46. moral hazard

    moral hazard Notebook Nobel Laureate

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  47. niffcreature

    niffcreature ex computer dyke

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    I've been thinking of getting a 533mhz FSB dual core celeron.

    Do you guys think it would be possible, even if insane, to bsel mod it to 3.7ghz?
     
  48. Ian_

    Ian_ Newbie

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    just checked the BSEL mod, it worked, but locked to the lowest...
    tried the link below, didn't worked, 'cause when I change the values in byte 13/14 press update&apply nothing happen, and the values takes it's original
    I found a cheap T8300 (2,4GHz/3M/800fsb), maybe I upgrade my cpu tomorrow to this and will try to ground fslb to get 266mhz
    how can I BSEL mod to 266mhz? just to check that the cpu can handle this before I start to solder or mod anything in the mobo...

     
  49. Atonof

    Atonof Notebook Enthusiast

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    Has anyone done the pll mod for a latitude e4300?
    Cpu runs with 1,012V @ 2,4ghz, i think there would be some extra mhz ;)
     
  50. niffcreature

    niffcreature ex computer dyke

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    the only dual core CPU you can BSEL mod are celerons like these List of Intel Celeron microprocessors - Wikipedia, the free encyclopedia
     
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