What Power Cord Can I Use For A Mac Mini 2012
On my 2012 mac mini, the IR sensor was just soldered to the board--no connector that you could snap out. I have never used the remote with it, so I just let it disconnect. But I did have a few moments of panic while I remembered what the IR was for.
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I have a client that has a Mirrored Doors G4. When you pressed the power button, the button would light up, but the computer would not turn on. Initially I thought it was a power supply problem, as the fans on the power supply wouldn't turn on. Internet explorer for mac os x. I assumed there was enough voltage to turn the light on, but not start the computer. So I tried using a spare power supply.
Still it didn't work. Uh oh, motherboard problem maybe. Then, on a hunch, unplugged the machine, pulled the clock battery, hit the power button to discharge. Then plugged it in without the clock battery. Best password protection program for mac.
The machine booted perfectly. I shut down, reinstalled the clock battery, and now the system is fully functional again. 'there is also a small button on the logic board that would do the same thing' On my machine, at least, this is called the 'CUDA switch.' Search Apple help for more information.
Reportedly, pushing it more than one in a power cycle will render your computer useless! I have a G4 Quicksilver 2002 that almost never powers up from a cold start -- I always have to open it up and hit the CUDA switch. From what I've read, it's a problem with the logic board or the power switch board, and would have been replaced under warranty had the problem shown up soon enough. Actually, you want to measure the battery's voltage and its current--lithium batteries (at least the 3.6 volt, 1/2 AA batteries used to power Mac clock/RAM chips) will maintain their rated voltage even after they've practically drained away, but their current level will tell the true story; they won't measure substantially less than their rated voltage until some time after they're no longer useful. What's happened is the battery's chemicals have changed state, to the point where the battery is basically a big resistor and so they can't deliver enough current, though the voltage deceptively still looks OK. Unfortunately, many cheap digital meters don't have a current measuring scale. Resetting the Power Manager for a none starting Mac is a standard procedure and is fully documented on apple knowledgebase.
What Power Cord Can I Use For A Mac Mini 2012 Spec
I not sure why it appears as a hint on this in 2005. When Mac users have been using the technique for years. What is important to know is that you must neve reset the PMU button twice in a row. You must leave at least 10 to 15 seconds if you think you need to press it again.