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    Dell PSU 330W mod for Clevo/Sager

    Discussion in 'Sager and Clevo' started by temrus63, Jul 21, 2018.

  1. temrus63

    temrus63 Notebook Enthusiast

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    hi to all!
    I have new Dell PSU 330W DA330PM1111 Y90RR + adapter with 7.4x5.0mm to 5.5x2.5mm
    I bought it for a laptop CLEVO P150EM (SAGER NP9150)
    I understand that because of the built-in chip Dell and ID line, my PSU will work at 240 watts maximum (without modifications)?

    Please, tell me how to modify it so that it works for 330W?
    I will be very grateful to you!
     
    temrus63, Jul 21, 2018
    #1
  2. Thousandmagister

    Thousandmagister Notebook Consultant

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    As long as it uses the same voltage , same connector , it should work . I also use an overkill Dell (Delta) 180W adapter on my 120W clevo , mainly because of overclocking :) , one more reason is because PSU does wear out over time
    Oh btw , you can cut and reuse your old connector if new one doesn't fit
    DSC_0008.jpg
     
    Last edited: Jul 21, 2018
    Thousandmagister, Jul 21, 2018
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  3. temrus63

    temrus63 Notebook Enthusiast

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    thank you for the answer,
    in 330W PSU Dell has a built-in chip that limits the maximum power from 330W to 240W.
    I asked how to bypass this limitation
     
    temrus63, Jul 21, 2018
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  4. Thousandmagister

    Thousandmagister Notebook Consultant

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    Wait, a built-in chip that limits the maximum power ? Such thing does exist ? Sorry , I haven't heard about it
     
    Thousandmagister, Jul 21, 2018
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  5. Meaker@Sager

    Meaker@Sager Company Representative

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    I believe you need a resistor of some small amount (somewhere between 20 and 200 ohms) to ground from the sense pin. Then you will want to fully replace the wire going from the PCB to a Clevo style one.

    The resistor being needed can depend on the exact PCB IIRC.

    The last time I worked on these was 5 years ago!
     
    Meaker@Sager, Jul 21, 2018
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  6. temrus63

    temrus63 Notebook Enthusiast

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    temrus63, Jul 21, 2018
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  7. Meaker@Sager

    Meaker@Sager Company Representative

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    You would connect the two as normal, then get a resistor with leads and solder the ID pin area to a good ground point (ground wire of the cable perhaps?) Just don't solder it to live as it will kill it.
     
    Meaker@Sager, Jul 21, 2018
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  8. temrus63

    temrus63 Notebook Enthusiast

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    Meaker @ Sager that is, the ID line can not be soldered to the ground?
     
    temrus63, Jul 21, 2018
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  9. Meaker@Sager

    Meaker@Sager Company Representative

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    Not directly, it runs at 5v and just shorting it would make it behave oddly. That resistor is basically what's on the maxhine side and will identify wattage requirements, something like 50 ohm for the base model, 100 for medium power consumption etc. When the ID chip reads this resistance I believe that's how it IDs what it's connected to.
     
    Meaker@Sager, Jul 21, 2018
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  10. temrus63

    temrus63 Notebook Enthusiast

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    Микер @ Сагер, why then I advise you simply to connect the ID line and the ground?( This is not enough?

    maybe someone has a photo of an open power supply Dell PSU 330W DA330PM1111 Y90RR ?
     
    temrus63, Jul 21, 2018
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  11. Meaker@Sager

    Meaker@Sager Company Representative

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    Yes, some of the bricks seem to do this if they don't get the right reading back from the sense pin, they assume it's not plugged into a machine that should be drawing more than 240W so it limits itself as a safety function.
     
    Meaker@Sager, Jul 21, 2018
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  12. temrus63

    temrus63 Notebook Enthusiast

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    temrus63, Jul 21, 2018
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  13. Meaker@Sager

    Meaker@Sager Company Representative

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    It has been 5 years for me like I said, you can try whatever you like, let us know how you get on and if it goes past 240W.
     
    Meaker@Sager, Jul 22, 2018
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    KY_BULLET and FTW_260 like this.
  14. temrus63

    temrus63 Notebook Enthusiast

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    Meaker@Sager If you have nothing to advise, then do not answer, your answers are mostly of no practical use/profit - take it easy. :)
    except you here is is are really professionals ;)
     
    temrus63, Jul 22, 2018
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  15. Meaker@Sager

    Meaker@Sager Company Representative

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    I'm guessing English might not be your first language, you took my post way the wrong way.
     
    Meaker@Sager, Jul 22, 2018
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  16. temrus63

    temrus63 Notebook Enthusiast

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    Meaker@Sager, sir, English is not even my second language) only the third)
    try everything (as you wrote above) I'm can without your advice)
    but your answer is not of practical use, you have not confirmed or denied my assumptions, to give a detailed answer you can not, so please-refrain from comments
     
    temrus63, Jul 23, 2018
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  17. jaybee83

    jaybee83 Biotech-Doc

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    o_O

    this is the first ive seen someone calling @Meaker@Sager ´s posts "of no practical use"

    hilarious! :D
     
    jaybee83, Jul 23, 2018
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  18. temrus63

    temrus63 Notebook Enthusiast

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    jaybee83 it's fan :D

    on my question useful messages probably will not)

    on my question useful messages probably will not)
     
    Last edited by a moderator: Jul 23, 2018
    temrus63, Jul 23, 2018
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  19. Meaker@Sager

    Meaker@Sager Company Representative

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    Try it yourself and you could confirm it? You know you must not connect sense to live (because I told you that) and you know you must connect it to ground (because I told you that) now the question is: Does it need a resistor in order to give full output?

    You are the proverbial horse that has been lead to water but refuses to drink...
     
    Meaker@Sager, Jul 23, 2018
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    temrus63 and KY_BULLET like this.
  20. temrus63

    temrus63 Notebook Enthusiast

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    @Meaker@Sager sir, I have brought all the links at once. your information about the resistor diverges from the message from Nospheratu, which advises simply connect the ID line to the ground. to the question - do I need a resistor or not you do not know the final answer

    you're serving water in the sieve...
     
    temrus63, Jul 23, 2018
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  21. m4gg0t

    m4gg0t Notebook Evangelist

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    Wow, this is a first...
     
    m4gg0t, Jul 25, 2018
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  22. Dialup David

    Dialup David Notebook Consultant

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    Howdy, there are essentially three pins on the Connector. The barrel itself is standard, but the center pin is tied to a DS2502 which uses the 1-wire protocol to communicate with the power controller over a couple packets that basically just read a string that identifies the max power delivery that's allowed from the laptop. You can either follow this guide: https://hackaday.com/2014/03/03/hacking-dell-laptop-charger-identification/
    Then, pull the outputs from that (I believe they are 19.5v standard as with almost all laptops), so then find the pinout to the 4 pin Clevo/Sager. Just connect up the imitation circuit, then the jack itself is converted into the Sager/Clevo end. Not particularly hard, but steps are involved. Now, personally, one thing I'd find is replacement tips for the Maxoak 50000Mah powerbank, as they come with a little Dell adapter that does this.

    That guide will show you two ways, one is writing to a microcontroller that spams the 1-wire line to essentially emulate it, in the other it's using a simple dummy chip that is essentially a ROM with a high wattage rating.

    It would be WAY more economical to do this with Dell 330w adapters as they are less than half the cost of the equivalent Sager/Clevo power supply. Especially with regards to the 660W dual setups.
     
    Dialup David, Jul 29, 2018
    #22
  23. Mauserk98

    Mauserk98 Notebook Enthusiast

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    @temrus63 Hi & hello folks there is any progress for this project ?
     
    Mauserk98, Aug 31, 2018
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  24. Meaker@Sager

    Meaker@Sager Company Representative

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    See the above, ithas been done if you are looking to do it.
     
    Meaker@Sager, Aug 31, 2018
    #24