Mac pro kernel panic on startup

One of the scariest things a Mac user can experience is a kernel panic. The Mac stops in its tracks, darkens the display, and puts up the message, "You need to restart your computer. Hold down the power button until it turns off. If you see the kernel panic message, there is nothing you can do to make it go away except restart your Mac. When you see the restart message, press and hold the power button until your Mac turns off. Now it's time to try to figure out what went wrong or at least get your Mac back to working condition.

Getting your Mac working again may be as simple as powering it back on. Many kernel panics don't recur, and your Mac operates as you expect.

Mac Pro wont just boot! + kernel panic

There are several reasons a Mac may have a kernel panic, but most of them are temporary and may not be seen again. These include poorly written applications, plug-ins , add-ons, drivers, and other software components. You may only see a kernel panic when unusual conditions occur, such as when two or more specific apps are running while most of your memory is in use.

Kernel Panic on macOS Mojave? Here's the fix

Restarting your Mac corrects the problem. Other times, the kernel panic visits from time to time, not on a regular basis, but often enough that you are tired of seeing it. In those cases, the problem is once again usually software related, but it can also be failing hardware or a combination of software and hardware problems, such as wrong versions of drivers for a specific piece of hardware, such as a printer. The most hair-pulling kernel panic is the one that happens every time you try to start up your Mac. In this case, the problem is usually hardware related, but it can also still be something as simple as a corrupt system file or driver.


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Because the majority of the time a kernel panic is transitory, it is tempting to restart your Mac and get back to work. However, if the kernel panic recurs several times, do the following. Start the Mac by holding down the Shift key and pressing the power button. Hold down the shift key until your Mac starts.


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  • This process is called a Safe Boot. During a Safe Boot, your Mac does a basic check of the startup drive's directory structure. If everything is OK, the operating system loads the bare minimum number of extensions it needs to run. No startup or login items are run, all fonts except those used by the system are disabled, and the dynamic loader cache is dumped.

    If your Mac starts up in Safe Boot mode, then the basic underlying hardware of the Mac is functioning, as are most system files. Now try starting your Mac normally. If your Mac restarts without any problems, then a wayward app or driver or some interaction between apps and hardware probably caused the kernel panic.

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    If the kernel panic doesn't recur in a short time, say a day or two of use, you can consider it just a minor inconvenience and get on with using your Mac. When your Mac restarts after a kernel panic, the panic text is added to the log files that your Mac keeps. Check the CrashReporter folder in Console for any recent log entries. With any luck, it may provide a clue as to what events were taking place immediately before the panic was declared.

    Isolate your hardware by disconnecting everything but the keyboard and mouse from your Mac. Now lets try starting up with safe boot which leaves off a lot startup items. I'm including the URL on safe boot so you can see what we are trying to do.

    Troubleshooting guide to resolve macOS kernel panics

    If safe boot clears the problem we need to look at the items not loaded for your problem. Show 5 more comments. Select a Language: Help Translate iFixit. Back Answers Index.

    Find out what's causing your Mac to panic and what to do about it

    Riy Rep: I then preformed both a quick and full apple hardware test. It said everything had passed.


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