So, what caused the kernel panic? It’s difficult to say. At this point, there’s nothing you can do except restart your Mac. Documents you had open at the time of the kernel panic likely won’t contain any of the more recent changes you made. The best piece of advice we can give you if you find yourself in this situation is to resign yourself to your fate. Hold down the Power button for several seconds or press the Restart button.”

The dreaded kernel panic rears its ugly head by imposing a black or gray (depending on the version of the OS you’re using) rectangle over your Mac’s display, along with the words, “You need to restart your computer. ‘Kernel Panic: You need to restart your Mac’ If you do, then the PRAM/NVRAM likely contains corrupt information and needs to be reset, and, depending on the Mac model, may need a PRAM/CMOS battery replacement. But that doesn’t mean you won’t ever see this error message. If the problem continues to occur, you may need to replace the PRAM/CMOS battery.)įor the most part, modern Macs have done away with the special battery and rely on a portable Mac’s main battery, as well as the use of solid-state non-volatile memory, to store this type of information. (You can reset the clock using the Date & Time preference pane. This allowed your Mac to remember such things as the time and date, the time zone you’re in, and a number of basic settings, including volume and brightness. The battery in question was used primarily in previous generations of the Mac to keep the PRAM or NVRAM, as well as a few other important bits of silicon in the Mac, operating, even when the Mac was disconnected from a power source. This error message can indicate that your Mac’s PRAM/NVRAM/CMOS battery has exhausted its charge and may need to be replaced. This may cause some applications to behave erratically’ ‘Your computer’s clock is set to a date before March 24 th, 2001. So, in no particular order, let’s get started.

For this guide, we selected a number of common error messages and explained what they mean and how, when possible, to fix or avoid the condition that caused the error to occur. While the Mac operating system tries to make understanding error messages as easy as possible, sometimes the description leaves a bit to be desired. It’s much more likely that you’ve seen at least a few of these error messages when using your Mac after all, we consider them somewhat common. Chances are you’ve never had any problems with your Mac and this guide to common Mac error messages won’t be of interest to you.

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