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MAC RESTART HOLD D DIAGNOSTICS MAC

MacBooks vent from the back edge, so make sure the back of your MacBook isn't blocked or it will heat up quickly.

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Why the 12-inch MacBook is better than the new MacBook Pro.

This app is killing your laptop's battery.

When I do want to use it on the couch, I grab a coffee-table book to put it on, to keep my MacBook's vents unobstructed. I can no longer plop down on the couch and use my MacBook on my lap or stomach without the fan kicking in almost immediately.

MAC RESTART HOLD D DIAGNOSTICS MAC

If your Mac struggles to juggle multiple apps, lessen its load by closing apps you aren't using instead of leaving them running in the background. So I use my iPhone to play music and open iTunes only when absolutely and unavoidably necessary. I find my MacBook Pro struggles when iTunes and Photos are open at the same time. To open Chrome's Task Manager, click the triple-dot button to the right of Chrome's URL bar, click More Tools and then Task Manager. Close or bookmark tabs you aren't using to reduce your browser's workload.Ĭhrome has a useful tool that shows the CPU and memory resources each tab and extension is using. Regardless of which browser you use, the more tabs you have open, the more system resources it uses. If this also describes your experience, it may be time to switch to Safari or another browser. In my experience, the usual suspect at or near the top of the list using the highest percentage of the CPU is Google Chrome Helper and Google Chrome. To see which apps are using the most CPU resources, open Activity Monitor and click on the CPU tab. When your MacBook's CPU works overtime, its cooling fan kicks in to dissipate the heat. Avoid ChromeĪpple says that "runaway applications can cause the processor to work overtime and affect the heat level of your computer." If the apps I use on my MacBook Pro were in a road race, Chrome would have lapped the field. If your MacBook is also prone to running hot, there are seven ways you can keep it cool and quiet. On certain models of Mac (but not many, these days), you’ll be able to access the RAM modules: if so, and if you’re up for the slight effort and minor risks involved in doing so, you can buy some new RAM and pop it in yourself.The older my MacBook Pro gets, the more its cooling fan spins, and the less pleasant it is to use. If repeated tests indicate that something is wrong with your Mac’s RAM, it’s time to do something about the problem.

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How to test for bad or faulty RAM on a Mac: How to replace the RAM in your Mac At the very least you should close down every other app, but a better solution is to use Safe Mode (hold the Shift key while booting) or Single User Mode (hold down Command + S) – whether you’ll be able to use these modes will depend on the RAM check program you’re using. We recommend that you run the RAM checks in as stripped-down an environment as possible: you want to make as much RAM available for testing as possible. Read next: How to find the best apps on the Mac App Store Remember to check the reviews to find something reputable. But running a search for ‘RAM’ on the Mac App Store will bring up a number of options.

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Memtest, which is free and runs from the Terminal command-line. One of the most popular memory-testing utilities is Here’s where dedicated memory-testing diagnostic programs come in. The symptoms have allowed us to reach a working diagnosis, but like Gregory House MD we won’t be happy until we’ve got confirmation of the illness. How to test for bad or faulty RAM on a Mac: How to test the performance of your RAM But if it’s happening a lot, it could be evidence of faulty RAM.

Corrupt files: From time to time you will find that saved files become corrupt, and this is normal.

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Unexpected/unexplained software crashes: An application packing in can be caused by many things, but if this seems to be happening more than normal (and particularly if the crash reports show inconsistent causes) it could point to a RAM problem.

If this is happening consistently, it’s worth running the test in the next section.

Failure to boot: Even if there wasn’t a triple beep, failure to boot up may still indicate a RAM problem.

A failed boot is always a bad sign, but the triple beep lets you know that the Mac detected a RAM issue when running its standard boot-up diagnostic check.

You’ll hear three beeps instead of the usual startup come when booting up and then the system won’t boot.

Triple beep on start-up: The clearest signal your Mac can give that its RAM needs to be replaced.

As a general guide, look out for one or more of the following symptoms, but bear in mind that they won’t appear consistently: very often a problem will only occur when a particular part of your RAM is accessed. How to test for bad or faulty RAM on a Mac: Telltale signs that your RAM is faultyīad or faulty RAM makes itself known in various ways and at various times.