- USEFUL MAC DIAGNOSTIC TOOLS MAC OS
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Sometimes things break down unexpectedly and you want to be prepared for such dire occasions. Even though that's true to some degree, it's still a good idea to have diagnostics tools at your disposal at all times so you can always know what's going on inside your box.
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And even though many have shifted to mobile forms of computer technologies, some of still remain loyal to our good old desktops.Īs technologies develop and computers become much more reliable with each passing generation, we get the sense that we don't need to put so much energy and effort into the hardware and software maintenance of our beloved machines. Most of us these days (including casual users) can't live without our computers, be it a PC, a laptop or even a tablet. Using this unique hardware ID you can determine exactly what model Mac you have and what parts are needed for repairs or upgrades.Computers have gone a long way from being glorified calculators. The key piece of information to know about a Mac is the Model Identifier as displayed in System Profiler, e.g., MacBook1,1 or iMac5,1. Listing every model of Mac made along with many peripherals and iDevices, this free app (donationware) is a little gem for anyone who upgrades or repairs Macs. If you’re looking to find out how much RAM your Mac can take, what kind of hard drive it uses, the maximum supported OS or many other specs, Mactracker is the app for you. Versions are Operating System specific, so download the one needed for your Mac.
IStumbler also scans for bluetooth networks and can list all gear broadcasting itself via Bounjour on the local LAN. This information can help you determine optimal channels to use for network setups, and discover many local WiFi networks that don’t even show up in the Mac’s Airport menu. iStumbler is a WiFi scanner that samples local networks every few seconds and displays network names, signal strength, signal to noise, channel numbers, etc. Solving WiFi issues can get much easier when you can really see what’s going on in the neighborhood. Both these utilities can find unique files when scanning the same drive, so it is sometimes helpful to have both on hand for an emergency. Recovery programs can also be useful to move data as a last resort, when copying or cloning doesn’t work. Having a good data recovery utility is critical.ĭata Rescue and FileSalvage both operate similarly, scanning your hard drive for recoverable data then retrieving this data in a second pass. Sadly, most people become religious about backups only after the first catastrophic loss of data has occurred. If you’ve already run DiskWarrior or Apple Disk Utility on a drive and you still can’t copy some files, try using Carbon Copy Cloner or SuperDuper! These tools can utilize several different methods of copying, and if errors persist will move on to other files without bombing out of the copy operation – unlike the Finder.Īccidents happen, and hard drives crash.
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Having a bootable clone permits you to downgrade to your system to an earlier version if something goes wrong, or import data and applications as needed if you are doing a Manual Mac System Migration.Ĭloning utilities can also be useful in copying data which the Finder balks at, such as items with mixed permissions or disk errors.
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This program (as with others) can be loaded on a bootable USB Flash drive, a handy troubleshooting tool for Intel Macs when your full toolkit isn’t at hand.Ĭloning a hard drive is an essential part of backing up a system, particularly before doing an upgrade.
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TechTool Pro has been around for many years and is a reliable way to see what’s going on inside the case at the hardware level. This virtual stethoscope can test RAM, hard drives, graphics and other Mac subsystems, with detailed hardware tests and reports. It’s important to use the correct version of DiskWarrior which supports your Mac model and operating system.Ī more complete alternative to the Apple HW Test Utility is TechTool Pro. I’ve found the best way to use this tool is to boot a troublesome Mac in FireWire target mode, then run DiskWarrior from a second Mac.
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This works similarly to Rebuild the Desktop from the Classic Mac OS days but in a much more advanced way. Directory errors ( e.g., file not found), permissions problems, copy problems, systems which won’t boot (flashing question mark at startup), DiskWarrior is the thing I reach for first.
My Go-To utility for disk related problems is DiskWarrior, hands down. Note that these discs are specific to the machines they shipped with, they will not work with other models. Restart with your restore disk in the optical drive – or Flash drive, for new MacBook Airs – and hold down the D key at startup to boot into the Apple HW Test Utility.
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