![]() ![]() ![]() I also tried a tool called gfxCardStatus but seems to be buggy and incompatible with MBP's > 2011.Īnother weird situation is that after reinstalling High Sierra, the MBP worked OK for about half a day. I'm not even sure if the internal graphics card can be broken, but I tried to force the MBP to use the external card by turning 'Automatic graphics switching' off (preferences>energy saver>automatic graphics switcher). This made me suspect that the internal graphics card (Intel Iris Pro) is broken, since an external 4K display would likely be using the external (or 'discrete') GPU (NVIDIA GeForce GT 750 M). Strangely enough the MBP does NEVER crashes when I have an external display connected (4K via mini-display port or HDMI port). When I restart there is normally no mentioning of the crash or an option to send a crash report, only once it said it crashed and mentioned a kernel panic. First the screen goes black, then the fans start blowing and finally the MBP turns off completely. My MBP constantly crashes within 10 minutes. But since it keeps running fine with an external display this strikes me as odd. No useful responses except that it's likely some issue with the logic board. I've posted the message below to other fora. ![]() I've tried gfx.io but that doesn't seem to work on this macbook pro. It seems things go wrong when using the integrated graphics. In that case it only crashes when the display goes to sleep. The weird thing is that when I keep an external display connected it NEVER crashes, whatever I do. If you guys have any advice, it'll be much appreciated. I really don't want to pay the $575 to replace the logic board. The entire time I've been using the latest macOS Sierra. After the initial shut down, it can only run for about 5 minutes. I've noticed when I use it right after wiping my hard drive and downloading another copy of Sierra it runs for about 30 minutes. However when I got home, it crashed again. The Genius Bar employee told me if it still crashes, worst case scenario was to pay a flat fee of $575 (minus tax) and replace the logic board. I downloaded google chrome and Spotify and ran a bunch of applications for about ten minutes and my laptop was fine. I did it in store and my Mac seemed to be working fine. The second time I went to the Mac store, the employee told me to wipe my entire hard drive, including the windows partition. ![]() The third time I wiped it, I didn't restore any old data and it would still crash. The second time I wiped it, I manually dragged and dropped all the files I wanted from my external hard drive and it still crashed. The first time I wiped it, I immediately restored all my data via time machine. He then told me to wipe the Mac side of my hard drive. The first time the Genius Bar employee ran a lot of diagnostic tests and saw that nothing was wrong with the hardware (according to those tests), he then downloaded a malware app and deleted any trace of malware. I've tried resetting the pram and smc multiple times. I have my laptop partitioned (via bootcamp) and when I run windows my laptop runs perfectly fine and never shuts down. Even when I'm only using one application it'll randomly shut down. My 15 inch MacBook Pro has been randomly shutting down for about 2 weeks now. ![]()
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