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cFriend bought Liquid metal for laptop heat sink without knowledge, now motherboard is dead!

My friend has a gaming laptop Asus ROG G512L. A month back, he decided to swap the thermal paste, he lives far away from me so he called me to get suggestions. I suggested him to get SLIGHTLY good ones but not to experiment.

He watched someone's video and randomly bought Thermal grizzly brand's Liquid metal. He had no idea what it is and how to apply & never told me about it. He took it to a professional shop for swapping the thermal paste, that idiot didn't even clean the old paste, EMPTIED 1 GM of tube on that tiny laptop's surfaces!

2 - 3 days later, the GPU wasn't getting detected then 2 days later, the laptop died. He couldn't connect the dots, he thought it was because of his excessive RAM & SSD swapping.

I opened the motherboard today and was utterly shocked to see LM everywhere, even in the ribbon connection ports.

I painfully cleaned it with various techniques. Additionally, I did the following things, all with the battery removed:

1. Disconnected everything from the MB, even RAM & SSD. Kept only the keyboard ribbon connected because there isn't a separate power button, it's a part of the keyboard only.

2. Checked voltages with multimeter. The charger is supplying 19.80v ontinuously without any hiccups which tells me nothing is shorted on the MB. Also, all the mosfets near the power input have no shorts and are getting steady 19.80v at their first pins.

3. The resistors near the USB ports show constant 5.1v after connecting the charger. So current is reaching till there properly.

4. Checked it visually with mobile camera on MACRO mode, no component looks burnt or swollen.

5. I especially checked all the gold pins of the keyboard connector port for shorts in between them, couldn't find any.

It still doesn't turn on. I suspect that maybe it's not getting POWER ON command from the power button, I have no idea how to force it on.
#hardware #technology
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