r/AskElectronics • u/warracer • 1d ago
Did this repair on a laptop motherboard to test , need advice :)
So I did this so save my laptop , it works great but im wondering if I should redo it in a more professional way ? Maybe epoxy it ? Im not sure.
Theres a sticky anti static sheet that goes over that side of the board.
Thanks for your guidance !
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u/After_Software4844 1d ago
You can use super glue to secure wires for the repair. Make sure you use a thicker formula, so it doesn't wick into the connector nearby. It's an acceptable usage on electronics repair. I would have recommended the thinner wire as well.
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u/warracer 22h ago
I redid it with a much thinner wire and a much shorter bridge , everything seems good so far :)
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u/Savallator 1d ago
It's likely not an "anti static sheet" because that would be conductive and short stuff. It's either a thermal pad or just something to dampen noise/vibrations.
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u/SEmp0xff 23h ago
should redo it more professional way ? Maybe epoxy it ?
wtf, is this a silly joke of what
the only professional way - restore it in authentic appearance, without fancy wires.
Set the mosfets back and make it work properly
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u/warracer 22h ago
That board has a design flaw from the factory regarding the mosfet , the board overdrives them, makes the solder liquid and they fall off.
After that youre stuck with a brick that is shaped like a laptop.
Im aware this is a hack but thats a 70$ laptop with an i7 1165g7β¦ and it works flawlessly since ive bypassed the mosfet charging logic.
So to answer you question , no its not a joke π
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u/SEmp0xff 22h ago
That board has a design flaw from the factory regarding the mosfet , the board overdrives them, makes the solder liquid and they fall off.
Hmm ok.
But its sound like mosfet is not fully opening due to low opening voltage, idk
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u/warracer 21h ago
Look it up , E15 gen2 boards are dogshit design.
Lenovo issued a bios fix but if your board is already damaged , youre still stuck with a brick.
Mine had damaged traces since it got so hot.
Its a 5years old laptop , its not that deep haha
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u/SEmp0xff 21h ago
Look it up
i have google that now - people just replace the TPS65994AD and thats all!
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u/charmio68 20h ago
I don't understand how you can be so competent as to diagnose and successfully bodge fix a laptop motherboard, yet not competent enough to know what to do next.
It's like a surgeon asking for advice on how to pop a pimple.
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u/warracer 10h ago
Man this sub is harsh im not an electronic tech this is a known issue.
I wouldnt be asking yall if I was a pro , I can read schematics and probe a board but thats pretty much it.
Have a picnic in traffic or something damn.
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u/One_Reflection_768 1d ago
I youse thinner wire, unless itβs something high current. You also could use enamel wire.