Mar 11, 2020 6 Apps to Check Mac Hard Drive (or SSD) Health 1. The first handy thing you can do is check the S.M.A.R.T. Status with the built-in Disk Utility on macOS. CleanMyMac is mainly used to help make more room on your almost full hard drive (or SSD). Disk Diag helps you to quickly find out how much disk space is used in your home folder by- Application Caches and Logs- Downloads and Mail Downloads folder- Items in you MacGenius Blog. I couldn't find much in the App Store with a few quick searches, but I do know of a couple different RAM diagnostic utilities, however, all of them require the use of a USB or a floppy or some other media type that can be booted into; while I have experience with at least one of these, I have never used any of these under Mac OS X.

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CleanMyMac X is the 10th anniversary edition of CleanMyMac, a native macOS tool that daily cleans one million Macs worldwide. The app does all the essential housekeeping on a Mac: deletes tons of junk and malware, and makes a computer faster and more organized. You can use CleanMyMac X to manage storage, apps, and monitor the health of your Mac. A Note About Manufacturer-Made SSD Diagnostic Tools. There are, of course, dozens of other diagnostic tools that you can use to monitor, diagnose, and optimize your SSD. Some are free and some cost money. But at the end of the day, it’s best to stick to the software provided by your SSD’s manufacturer. Qgis 3.2 download mac.

1. Data Rescue II

Editor's Note: Ryan Faas has updated this article for 2010. Be sure to also read The Top Mac Hard Drive Utilities, 2010 Edition.

When it comes to diagnosing and resolving problems with their computers, most Mac users rely on Disk Utility and the tools that come with Mac OS X. Disk Utility can resolve a number of problems—such as damaged hard drive directory structures and permissions problems with Mac OS X’s system files. However, Disk Utility doesn’t provide overly extensive hard drive repair and management options and it doesn’t provide any data-recovery features. Also, the tools found in Mac OS X’s Utilities folder don’t include extensive diagnostic tools. The limited capabilities of the tools that ship with Mac OS X can be augmented with a number of utilities offering advanced disk management, diagnostic, and repair capabilities. The five tools profiled here each have own particular strengths, but they all offer much greater chances of diagnosing, recovering from, and preventing major hardware, hard drive, or operating system problems.

Data Rescue II

Prosoft’s Data Rescue II is a tool that is designed to do one thing, data recovery, and designed to do it extremely well. Data Rescue II is for situations in which you need to recover critical data that has either been deleted or is stored on a damaged drive. It can work with drives that are failing because of corrupted directory structures (the most common hard drive problem) or because of physical problems with the drive.

Unlike hard drive repair tools, which work by attempting to repair or rebuild corrupted directory structures, Data Rescue doesn’t make any modifications to a drive. This enables it to have a greater chance of recovering data from a drive than the process of actually trying to repair the drive. Repairing a corrupted hard drive can often be successful, but if it fails, it can also result in further data loss. Data Rescue’s read-only approach means that it often has a better chance of recovering data than other tools.

Data Rescue ships on bootable CDs for both Power PC and Intel Macs, and it provides both an easy-to-use guided interface and an expert interface for advanced users. When attempting to recover data, it can sort available files by type, making locating and recovering specific items easier. It can be used to clone the contents of a damaged drive during recovery or to allow you to select only the files you need. The one requirement to be aware of is that Data Rescue II will require a second hard drive or partition to recover data to—this is required for its hands-off recovery approach.

If you are looking for a tool simply to recover data, there is no better tool than Data Rescue II. In fact, the ability to recover data and then simply reformat a problem drive using Disk Utility could provide consumers with a complete disk toolkit solution. The fact that it also offers you the ability to recover deleted files is icing on the cake, particularly for support professionals who often get asked to perform this type of miracle.

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Mac can be conveniently purchased from the Apple store and most of configuration allows you to upgrade the memory so that you don’t need to open the case and take the risk in using an incompatible memory which would cause system lockups.

The only thing is the upgrade from Apple store cost a lot more money if compared to the one that it purchased from a computer store. For example, an additional 2GB of memory cost $50 at Apple Store while it only cost less than $10 if you search in Pricewatch. If you’re willing to take the risk in adding extra memory in your Mac either to save money or perhaps you have a few lying around, it is best to run a memory test to make sure that the RAM is fully compatible and won’t make your Mac unstable.

Here we suggest 3 different methods to easily run a memory test on your Mac OS X including the latest Mountain Lion 10.8.

Rember is actually a GUI for the popular command line memory testing tool called Memtest OS X. Instead of typing commands in terminal, you can run the test by clicking a button. You are able to test a selected amount or all of the memory, specify the number of times the tests should run and also viewing of the log. Rember includes Memtest OS X in the package so there is no need to manually download and install the memtest. Running Rember will show a table displaying the detected memory on your Mac. Select the amount of memory to test, number of loops and click the Test button to start checking the memory. When the tests is finished, Rember will show the test results.

Rember runs in Mac OS X which means that not all of the ram can be tested due to a portion of RAM being reserved for housekeeping.

Download Rember

2. Memtest86+

If your Mac has a SuperDrive, you can burn the pre-compiled bootable ISO image of the Memtest86+ and boot up the Mac with the disc. Just press and hold the C key when starting up Mac to boot from the disc.

The good thing about Memtest86+ is it runs by itself without relying on the operating system, giving you a more accurate memory test result.

Download Memtest86+

3. Apple Hardware Test

This is the recommended way by Apple to test your memory using their diagnostic tool. If you have an installation disc, insert the disc, restart your Mac, press and hold the C key. Select the language for the Apple Hardware Test and click the Test button to start testing. You can also tick the “Perform extended testing” option which would perform a more thorough test that takes considerably more time to complete. On the latest Mac OS X Mountain Lion, the Apple Hardware Test is already pre-installed and it doesn’t come with an installation disc. Simply boot up, press and hold the D key to start the Apple Hardware Test.

You can also see the amount of memory installed on your Mac at the Hardware Profile tab to confirm that the memory is correctly installed and detected. There are some Apple Hardware Test images that can be downloaded for older models. Do note that the Apple Hardware Test images are machine specific meaning that you cannot use the iBook version on a Mac Mini.

Download Apple Hardware Test

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‘Closing all apps’ is an option which can be set or disabled in the Rember preferences.

I’m trying to test DRAM one bank at a time in mid-2010 Mac mini with 2 banks of 4GB Kingston DRAM each.

Rember run overnight on max cycles (255) showed when both banks were full (8GB total), there was a DRAM failure. But run overnight on max cycles (255), Rember is so slow it’s completed less than 30 cycles. I tried this twice.

Is it not possible to check one 4GB stick at a time? (Mid-2010 Mac mini standard RAM is 1GB module in each bank for total 2GB.)

I have several DDR3 DIMMs I want to install, but the memory timing is not printed on them. Is there an app for Macs that can tell you what the timing is on installed DIMMs?

Best Mac App

Rember doesn’t shut down existing programs… you do that yerself

Rember is an amazing app! In regards to the comment above:

it closes all windows because to free-up whole RAM memory for tests.
It’s understandable that you must save your work before you open any diagnostic app.

Works great on latest 2019 iMac where Memtest failed and Apple Diagnostic Tool is a JOKE

Disk Diag Mac App Download

Rember /install-mac-app-on-external-drive.html.

I ran this app and it closed all open windows and running apps without asking or warning me. That is bad software. Who knows what data I lost as a result, let alone time in reopening what I can remember was running. memtest does not do this.

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Hope this works well, thanks!

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