PLL Pinmod Overclocking Methods and Examples

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

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  1. manocao

    manocao Notebook Enthusiast

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    hi, i have completely disassembled nav50, and know what?
    pin 14 of pll is already disconnected, it lacks resistor, it leads to anything, i have checked continuity with multimeter, see pics. the track begins on one side of the mainboard, then continues on the other side to a lacking resistor.
    so, why is setfsb showing that it is tme enabled (overclock disabled)? do i still need to connect pin 14 to ground? is not enough to be disconnected?
    thanks





    edit: i found out that pin 14 track end was connected to bat+ through the resistor above, so tme is still enabled
     
  2. manocao

    manocao Notebook Enthusiast

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    i finally cut and connected pin 14 to gnd through 10k resistor
    now tme is disabled but i dont know which 0D and 0E hex values to use, i tried the ones here but computer froze
    also tried adding hex +10 to 0E but it also froze
    can you help?
    thanks
     
  3. User Retired 2

    User Retired 2 Notebook Nobel Laureate NBR Reviewer

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    You have a ICS9LPRS387BKLF PLL running at a 133Mhz base frequency. Please refer to Dufus' guide here on how to manually program it. Once you figure it out what bytes you need for what frequency, can create a LUT file specific to your system for use with setpll to make overclocking a lot easier.
     
  4. EtrustMe

    EtrustMe Newbie

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    I'm not able to set SRC to PLL3, but SRC to PLL2 works fine, what's the problem?
    With Dufus' guide i'm able to change my FSB but i get BSOD after couple sec's.
     
  5. SunnyChrono6

    SunnyChrono6 Notebook Enthusiast

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    OK,I cut both pin 4 and pin 57,which should make TME-Disabled(although it already was according to setFSB) and set the FSB at 266Mhz,but I still can't overclock??It's still at 200Mhz(maybe luckily),but when I press setFSB,nothing happens.Have I done something wrong?
     
  6. manocao

    manocao Notebook Enthusiast

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    pll is running at 166mhz base frequency
    this is what i got up to now: 166 >170 = 1663mhz > 1705mhz
    these are the values working:

    fsb, 0D, 0E:
    -----------
    166.3, 49, 4e
    168.4, 49, 4f
    170.5, 49, 50

    then if i set 0E as 51 the laptop freeze/reboots/black screen
    so 0D must change from 49 to other hex value, i.e. 48
    any idea?

    [​IMG]

    [​IMG]

    it both works with speedstep enabled (two speeds) or disabled (always max speed)

    im afraid so many trials may destroy pc or hdd, im gonna try to make the tests with hiren's mini xp booted from pendrive (on-the-fly), without hdd

    edit: i forgot saying that if i restart computer, it freezes, i must shutdown
     
  7. ajbutch123

    ajbutch123 Notebook Consultant

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    I have been looking into overclocking the cpu on my acer aspire 6920g. When I try to overclock with setfsb my and click 'set fsb' It always jumps back to normal.

    my chipset is the intel 960 with the ics9lprs365bglf PLL.

    If a pin mod is needed I'm sure I can do that, just need to know which pin to ground!

    Thanks in advance.
     
  8. manocao

    manocao Notebook Enthusiast

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    do you know someone who successfully pinmodded fsb 166 > 200 in acer nav50 with ics9lprs387bklf pll by cutting fsla pin 20 and connecting it to ground through 10k resistor? pin 20 is both fsla and usb_48mhz clock output 3.3v, will usb port be disabled?
    thanks

    [​IMG]
     
  9. dadik

    dadik Notebook Enthusiast

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    Hello again so, I managed to get modded bios so now I am running my P8400 on dual IDA 2400mhz 1.0625V. Finally I thing I get right MB datasheet. since there is no exact same with ATI and DDR3 this one seems to be closest I will ever get.

    Image-Share - image-jpg-1408-192

    So figure what side of resistor I should isolate and connect to GND, right ?

    same picture of SLG..513v in higher resolution

    Image-Share - image-jpg-1322-252

    so my question is am I right ? :)
     
  10. chung_gun

    chung_gun Notebook Enthusiast

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    Is there anyone to help me clear about my pll ???:confused:
    My system is MSI CR420 (i3-380m cpu, 2526MHz, BCLK=133, multiplier=19).
    ‘cause I'd wanna overclock my system, I disassembled my laptop to identify the PLL.
    It was marked with “ ICS RS3199AL …. ….”
    So, I ‘ve been searching for the data of “RS3199AL” with google help .
    But, nothing ‘s yet…:(

    If anyone know about that pll, RS3199AL, please let me know about it, too.:)
     
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