Is it safe to replace a CPU in MacBook Pro 15” 2018?

Solution 1:

Depends on what you mean by "safe" exactly. Replacing a CPU is in itself safe in terms of not inherently creating any new risk of damaging the computer, or creating safety risks for the user.

However the tech must take care to replace the CPU in the correct manner (i.e. you need to handle it properly without damaging the new CPU), and you need to replace the CPU with the same model (i.e. replacing the CPU with a higher wattage CPU is not a good idea).

Note that if the CPU was damaged due to a problem with the logic board itself (for example if it was damaged by an overvoltage caused by a logic board problem) - then you are ofcourse still at risk of damaging the new CPU also.