Laptop repair successful! Like you, this person also had a bad motherboard. (Wouldn't stay on long/many random reboots). It's definitely a laborious task to replace it. The root of the problem starts with untrained individuals assembling these computers. A lot of them overheat due to excessive thermal paste being applied to their CPUs and GPUs on the motherboard. As a result, they tend to overheat. Even
Apple's/Mac's own service manual recommends applying so much thermal paste that it acts as an insulator and results in greater heat.
THIS is actually how much you need for optimum cooling. So I guess it's more whoever wrote the technician's manual, but I digress. Previously the temperature was at 80C/176F, now it's at 35C/95F now. Running these components at high temperatures reduces the lifetime of the device.
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Images of the repair below:
EDIT: DO NOT TRY THIS AT HOME.
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![[Linked Image from ]](/ub/attachments/usergals/2012/01/full-2987-95-imag0251.jpg)