BSEL Mod on a socket P explained with photos

Discussion in 'Hardware Components and Aftermarket Upgrades' started by naton, Jun 16, 2009.

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  1. User Retired 2

    User Retired 2 Notebook Nobel Laureate NBR Reviewer

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    Since you have a non-ES CPU I believe you'd get multiplier locked out when applying BSEL pinmod. Could be wrong. Could always revert to a FSLx PLL pinmod to get a 266Mhz FSB. Has been done on a 965PM chipset successfully. Likely running a 2.8Ghz CPU at 4.2Ghz as you are now is the the edge of cpu stability unless you have some crazy good cooling. Only advantage of increasing from 200->266Mhz FSB would provide faster RAM/video response with CPU multiplier pulled back to x15/x16 (4Ghz/4.27Ghz) from the current x21 to provide CPU stability. Is it worth the trouble? 4.2Ghz@200Mhz FSB is pretty impressive, if stable.
     
  2. hikkoo

    hikkoo Notebook Consultant

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    trying to run benchies @ x21 > but can only run Superpi1m an Pifast successfully, otherwise @ x21 is unstable....so hope on 266Mhz will help keep it stable just enough to finish other benchies is me goal.....cooling is great in XPSm1730 as long as heatsink internal fins are dust free & gpu,s an cpu fans on 100% speed ......winter here .....can get some nasty:) cool roomtemps
    but if have to can tinker around with extra cooling

    about the FSLx PLL pinmod ... need time to build up on me soldering skills(im still beginner) before attempting the impossible:rolleyes: the PLL Legs have paper width gap between each other an going to require precise expert skill to mod > me usb microscope set up is going to be handy for checking
     
  3. uXsPeSr

    uXsPeSr Newbie

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    M1330 have SLG8LP550V, cut circuit and force pin 45 (BSEL1) to GND with a 5k6 resistor. this change to 266 MHz, normal socket wire mod not working.
    First time run wit a t7300 ( see http://valid.canardpc.com/show_oc.php?id=1234099 )
    Then app a VID 3 mod (VID3 to Vss) and run a T9300 (ES) as sowh on previus post.
     
  4. uXsPeSr

    uXsPeSr Newbie

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    Not, I try with original processor T7300, and work right with FSB to 1066,
    I open circuit betwen PLL to chipset and CPU and pull down pin 45 (FSEL1) to GND w/5K6 resistor.
    Prior to do this not working.

    NOTE: RAM running at 880 MHz. I have a 800 MHz OCZ and working well and past all exaustive test.
     
  5. uXsPeSr

    uXsPeSr Newbie

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    Hi: today load Trottlestop and enable as Exterme CPU and reach multiplier x13.5. FSB=3590 MHz
    See: CPU-Z Validator 3.1
     
  6. moral hazard

    moral hazard Notebook Nobel Laureate

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    What CPU is that?
     
  7. hikkoo

    hikkoo Notebook Consultant

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    XPSm1330 with a T9300(ES) + cas5 800Mhz ram + PLL MOD 200 to 266Mhz + ThrottleStop(v2.53?) = fantastic OCing:)

    uXsPeSr..... do ya think throttlestop would work with T7300 (non-ES) + cas5 800Mhz ram + PLL MOD 200 to 266Mhz , would be really interesting to see if can set to x11 ,
    anyway thanks heaps for posting, hoping to get similar result in XPSm1730 > prob is me PLL CY28547 may not support 266Mhz?
     
  8. uXsPeSr

    uXsPeSr Newbie

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    If you see in post#343 I use 266 MHz with a T7300@2660 MHz, but not test with throttlestop. The previus mentioned M1330 PLL is the same CY28547.
    On M1330 schematics show CY28547, but pinout are same. Pull down pin 45 to GND with a 5k6 resistor and seprate cirrcuit betwen chipset and PLL (cut trace),
    and not need VID mod. I can help If you upload picture of PLL and oposite motherboard face with good resolution.
     
  9. uXsPeSr

    uXsPeSr Newbie

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    Is a T9300 QADW (ES) stepB1
     
  10. moral hazard

    moral hazard Notebook Nobel Laureate

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