To help you see the scale of what’s needed after you clean off the old paste cut a piece of the thinnest tissue you have to the size of the silicon chip, now wet it and roll it into a tight ball. I often encounter systems which I swear I needed a shovel to clean the over abundance of TIM people would put on “A lot more does a lot better attitude” which is so far the wrong direction! I would clean and re-paste the heatsink with fresh thermal paste, do use care as a little goes a long way! But as you are going in to replace it you should also clean out the dust buildup which I’m sure is not helping matters as the CPU and GPU both need adequate cooling both at the heat sink as well as the fans. So you do need to deal with the low hanging fruit issue first. Here’s what you need MacBook Pro 15" Retina (Mid 2012-Early 2013) Battery and here’s the guide to put it in MacBook Pro 15" Retina Display Mid 2012 Battery ReplacementĪs far as the graphics messing up a weak battery can cause issues if you are running heavy graphics stuff. The battery is the original one from 2012, Lithium Ion batteries have about four years of life. In this case the age of the battery has done you in, as over time the chemistry of the battery breaks down. Your battery does indeed need to be replaced. heavy load on battery (probably when the GT650M wasn't working, I didn't experience such a situation when it was on battery. I tried all the things like SMC, NVRAM, Safe Boot and no results. It's true that I turned it off, but what does it mean if the computer realizes that it's shutting down? In the future, I will open the inside of the computer and share the conditions and photos of the parts with you. When I turn the computer off and then on, it says that the computer both shuts down due to an error and shuts down forcibly. When I turn off the automatic graphics and switch to the GT650M, the screen goes out again shortly after the Mac is turned on. I did not open the inside of the computer, but I did everything that could be tested from the outside in terms of software. Since the power of the battery is low in the coconut battery, the usage time is about 2 hours on average My computer's battery and charger (probably) confirm that it is original in software and physical. I tried all the applications in the forum, I could not get any results. My computer usually loses its screen in situations that require high graphics power and the keyboard's backlight continues to turn on Hi, I’m a Mid 2012 15” MacBook Pro Retina use, I bought it second hand.
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