Question about Apple Mac mini 2Ghz/2GB/120GB HD/SuperDrive with Fusion and Windows Vista Business Pre-installed Desktop
I tried to connect an external hard drive (used) onto my wife's mac via a USB plug. Now it will not even start. The circle comes on for awhile then it turns off. A mac mini. Help! Is there a service person who can fix this? In Ann Arbor/Ypsilanti Michigan?
DON'T SWEAT IT!!! You're a-ok! I'm a professional Apple IT Consultant holding all 9 pro certs apple offers including advanced hardware servicing, it's EXTREMELY difficult to mess up an apple, and you didn't accomplish that admirable goal. What you're describing is a classic electrical malfunction. Whatever hit that USB took a toll on the electrical assembly (there will be a log in the utility console when it boots). It probably drained then surged the electrical assembly. Here is how you know when it's an apple being cranky and an apple that has bunked- If an apple shows its front LED status indicator functioning light - this indicates the EFI, kernel, AV, and logic board have booted the first level of the 5 stage boot process. A malfunctioning unit won't do this. Next the comp chimes, this is a post (power on self test) indication, meaning all hardware is functional and the EFI/kernels can run Grey screen to logo means dscl (apples command line launchD programming is running), spinning gear means 1st part of OSX is booting. ~as long as a screen lights, an led functions, and a chime occurs, YOU HAVE A FUNCTIONAL COMP! it's all just resets and adjustments!!! :) What you've described is a comp that is displaying a boot power failure. Often seen in iPhones or laptops with liquid damage. To fix this is a simple process of resetting the electrical assembly, I'm attaching the steps. It's key commands at boot and unplugging stuff for a set # of seconds. Have someone with a stopwatch help you. The mini has 3 main parts to its electrical system PRAM (parameter random access memory), SMC (system management controller) and the PMU (power management unit). This is a hard reset, so your clock and date will need a reset, but data is all good. Here's your steps to repair, with symptoms straight off apples support article database (these steps are different for every make and model- FYI!!)... Here are apple's power symptoms it's time for an electrical system reset & diagnostic info from the section "power symptoms"- Power The computer doesn't respond to the power button when pressed. A portable Mac doesn't appear to respond properly when you close or open the lid. The computer sleeps or shuts down unexpectedly. The battery does not appear to be charging properly. The MagSafe power adaptor LED doesn't appear to indicate the correct activity. The boot cycles aren't completing to full GUI, though post and EFI boot are fully initiating The unit is displaying intermittent power failure or kernel panic shutdowns ***do resets in order listed*** PRAM Reset- do for 3-4 chimes To reset the PRAM, reboot the computer and hold the options-command-P-R keys at the same time. The computer will chime, and then continually reset and chime while these keys are held. Allow it to cycle a couple of times and release the keys and allow the computer to boot normally. SMC Reset- do 2-3 times Shut down the computer. Unplug the computer's power cord. Wait fifteen seconds. Attach the computer's power cord. Wait five seconds, then press the power button to turn on the computer. PMU Reset- do 2-3 times Force Quit (Option-Command-Escape) Restart (Control-Command-Power) Force Shut Down (press the power button for 10 seconds) If none of the above steps resolved the situation, reset the PMU. To reset the PMU on a Mac mini: Unplug all cables from the computer, including the power cord. Wait 10 seconds. Plug in the power cord while simultaneously pressing and holding the power button on the back of the computer. Let go of the power button. Press the power button once more to start up your Mac mini. Important: This procedure also resets the computer's entire electrical supply Be sure to reset your computer's time, date, and other system parameter settings as necessary. If this doesn't completely fix your issues, you are in need of a new power supply. A very inexpensive repair. $15-20 on amazon.
Posted on Mar 01, 2013
Do you have an OS X disc or the original discs that came with the computer that you can try and boot up from? If so, insert the disc upon powering up, after loading restart the mac and hold the "C" key down when you hear the chime until you see the spinning circle and see if it will load. It may take a few minutes longer than usual, but if it boots to the desktop screen it will help determine whether or not you have damaged something. Please repost if you were able to try this.
Posted on Oct 16, 2008
Best Buy geek squad might fix Macs. Try booting up the computer with out the hd plugged in. And then plugging it into the computer after it has booted up. I've found that unplugging the power from the computer for an hour or so and plugging it back in can sometimes magically fix some booting problems.
Posted on Oct 16, 2008
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Posted on Jan 02, 2017
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