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. naton

    naton Notebook Virtuoso

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    glad that you have sorted out the overheating problem :)
     
  2. Nekoarashi

    Nekoarashi Notebook Enthusiast

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    Any sense in trying this with my studio 14z t6500?
     
  3. rhairwolf3

    rhairwolf3 Newbie

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    It should work on your Studio 14z because it has an Nvidia chipset. Why don't you try it and confirm it?
     
  4. naton

    naton Notebook Virtuoso

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    I'm not sure... you should try it since it seems that nvidia chipsets don't lock the multiplier after the mod.
     
  5. H-Emmanuel

    H-Emmanuel Notebook Evangelist

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    I just read through the 21 pages and honestly, congratulations to everyone! It's really nice to see that so many brave people have tested hardware overvolting mods on different chipsets etc. I'll soon be doing a volt mod on my QX9300 because I've done a HW mod (FSB @ 333MHz by shorting two dots on the motherboard) so my quad-core runs at 3.15GHz instead of 2.53GHz but that is unstable at stock voltage. With the help of Kaltmond who showed me which pins to short, I'll be gradually increasing to 1.1875,1.2000, 1.2125 until it's stable.
    http://www.abload.de/img/xxxitps.jpg
    Red for 1.1875; blues for 1.2V

    If you guys have any recommendations regarding the volt mod, I'll be pleased to hear them. I'm running on a PM45 chipset.
    Also, regarding the wire used to do the mod, does the wire has to be fully inserted into the socket holes (until it actually touches the bottom) or it's not necessary? Also what are the smallest wires that I can use to perform the mod without having them melting or something lol! I really want to avoid having the CPU not seated flat because it'll be very hard to get all 4 cores cooled properly otherwise.

    Thank you very much!
     
  6. naton

    naton Notebook Virtuoso

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    Sorry for the delay, I'm not often online :(
    When I did the mod the wire went into the the wholes by 2 to 3 millimeters. Actually it's not necessary for the wire to go inside the while; this is done to ensure that the wire does not move after the mod.

    An alternative to the wire in the wholes is to solder the wire in the soldering point of the CPU socket (you need to be very good with a soldering iron). Also the wire can be fixed directly into the CPU (but this is very diffecult to achieve).

    The thickness of the wire doesn't seem to be that important. I've used an IDE cable wire in the beginning because it is easy to shape. I also used a wire of a headphone.

    I can assist you with the voltmod if you can tell me you default max vcore (without any mod).

    P.S.
    Could you tell us more about the HW mod.
     
  7. H-Emmanuel

    H-Emmanuel Notebook Evangelist

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    Hi,
    The CPU when running at 2.53GHz runs at 1.1625v usually and sometimes increases to 1.2750v (often right before IDA kicks in and takes a core up to 2.8GHz). Kaltmond showed me which holes to connect; according to what he said, the red line supplies 1.1875, blue ones 1.2v. I'm running my QX9300 at 3.15GHz by tricking the clock generator into running at 1333MHz but I need some more voltage.

    Here's the thread about the HW mod:
    http://forum.notebookreview.com/showthread.php?t=401682
     
  8. naton

    naton Notebook Virtuoso

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    1- Out of curiousity, what is your temperature at 100% load before and after the overclock?
    2- Is IDA still kicking in after the overclock (i.e. are you getting 3.5 GHz with IDA, or did you deactivited it)?

    I'm not really familiar with IDA. I played a bit with a laptop with a T7300 CPU but none of the software I tested has made any use of IDA. So, for now I'll ignore IDA and its vcore = 1.2750v.

    Max Vcore = 1.1625v means VID[6543210] = 0011011. This means:
    Vid0 + Vss = 1.1625v + 0.0125v (1.1750)
    Vid1 + Vss = 1.1625v + 0.0250v (1.1875)
    Vid3 + Vss = 1.1625v + 0.1000v (1.2625)
    Vid4 + Vss = 1.1625v + 0.2000v (1.3625)

    (Vid0 + Vss) & (Vid1 + Vss) = 1.1625v + 0.0375v (1.2000)
    (Vid0 + Vss) & (Vid3 + Vss) = 1.1625v + 0.1125v (1.2750)
    (Vid0 + Vss) & (Vid4 + Vss) = 1.1625v + 0.2125v (1.3750)

    (Vid1 + Vss) & (Vid3 + Vss) = 1.1625v + 0.1250v (1.2875)
    (Vid1 + Vss) & (Vid4 + Vss) = 1.1625v + 0.2250v (1.3875)

    (Vid3 + Vss) & (Vid4 + Vss) = 1.1625v + 0.3000v (1.4625)
    I would stay away from the last mod (i.e. Vid3 + Vss and Vid 4 + Vss) because I don't think either your laptop or CPU can handle it.

    If you opt for any of the above mods, please be aware that changing the highest accessible Vcore (or the lowest one / undervolting) will change the range of accessible vcores for your CPU lowest multipliers.

    For example, if you do the Vid3 + Vss mode (1.1625v to 1.2625v), the accessible/selectable vcores in RMclock are:
    [0.8125v to 0.9000v] = [0.8125v to 0.9000v] after mod
    [0.9125v to 1.0000v] = [1.0125v to 1.1000v] after mod
    [1.0125v to 1.1000v] = [1.0125v to 1.1000v] after mod
    [1.1125v to 1.1625v] = [1.2125v to 1.2625v] after mod

    The above means that after VID3 mod selecting 1.0000v or 1.1000v in RMclock will provide 1.1000v of electricity to your CPU.

    I hope that the above is clear enough to explain the overall idea. Let me know what mod you want to try and I'll draw the right wiring diagram for you :).
     
  9. H-Emmanuel

    H-Emmanuel Notebook Evangelist

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    Thank you so much for the detailed answer. Yeah I'm aware about all the accessible voltages increasing, it's fine.
    I'll be trying:
    (Vid0 + Vss) & (Vid3 + Vss) = 1.1625v + 0.1125v (1.2750)
    (Vid1 + Vss) & (Vid3 + Vss) = 1.1625v + 0.1250v (1.2875)
    and eventually
    Vid4 + Vss = 1.1625v + 0.2000v (1.3625)

    I know how to wire my volt mods, however just do doublecheck make a diagram of the 2nd one. Does it matter which VSS you connect a VID to?

    Thanks a lot!
     
  10. millermagic

    millermagic Rockin the pinktop

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    I managed to Pinmod my Dell desktop from 1.83 to 2.3 ghz so now I want to try this on my laptop.

    Would this work on my Dell Inspiron 1520 with T7250 processor @2.0 ?
     
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