One of the frustrations with refurbishing Apple laptops is that no matter how must testing I do before shipping, I seem to have a failure rate of about 10%, i.e. The hard drive is DOA when it arrives, the latent iBook video issue suddenly rears its head, the customer tells me the laptop will not power on, etc. I double-box everything, so I know it's not related to shipping damage. I imagine using the laptop personally for a period of time would help bring out some of these issues, but I sell so many machines that it is not realistic to do this.My question: Is there any 'burn-in' software available for Mac which 'kicks the tires' on a machine and determines if components are near failure? Or if not, is there any comprehensive diagnostic software available? Things like the Apple hardware test and Tech Tool are great, but they never seem to alert me of issues I wasn't already aware of.What do you do before shipping a machine to make sure it's 100%?Thanks! I'm A PC builder/seller/refurbisher, and what i do before i ship out any PC, is to torture test it (Run it at 100% for extended periods of time) this ensures system stability.
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One good way to do this is to run a pi calculation program, there are plenty of these around for PC, Mac, Linux, Ect. And set it to calculate to a million digits or so (Depending on the speed of the computer, this can take a fraction of a second (Newer 4-Core CPUs) to minutes (On say an iBook G4) this is a good way to test CPU joint reliability because it heats up under full load quickly) to test RAM, there is a program called CheckUp, (A Set Of Tools For Mac) and it has a great free program to test RAM built in. To Test The GPU run a 3D application for a few minutes (a good one is called 'Cube 2, Sauerbraten' a free open source FPS for PowerPC macs) and run that at a high setting.
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I'm not aware of any programs that have a function that can test all of this in one, though.
Updating your MacBook or iMac should be free of headaches and drama. Apple even coined a marketing phrase “it just works!” But recently, a lot of readers and Mac users are finding the opposite–it just doesn’t work! Several users have recently had issues updating their MacBook with the latest version of macOS. Unfortunately, this appears.
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