Why is my iMac randomly turning off?
Obviously, your iMac gets power from the power socket. Check the cables that you’re using to plug your iMac into an electrical outlet. Also, make sure that both ends of the cables are firmly plugged. If they are loose, they might be causing the issue of your iMac randomly shutting down.
Why does my computer shut down for no reason?
An overheating power supply, due to a malfunctioning fan, can cause a computer to shut down unexpectedly. Continuing to use the faulty power supply can result in damage to the computer and should be replaced immediately. Software utilities, such as SpeedFan, can also be used to help monitor fans in your computer.
Why does my Apple iMac randomly turn off?
Randomly turns off sometimes as soon as trying to log in, some times 40 minutes after logging in, other times 24 hours. It is not a complete shut down it is just completely losing power.
What should I do if my iMac shut down by itself?
Have you reset your SMC? This can help sudden shut downs: 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.
Why does my iMac go black when I leave it on?
Check out these attached pics of a failing logic board and you will see that that is a separate issue. If your Mac is randomly going black, shutting down and the only way to hopefully power it back on is after you leave it unplugged for a few minutes.. You, my friend have a faulty power supply!
Why is the ram on my iMac bad?
Turns out the RAM was bad, I replaced the RAM and have been stress testing the machine for four hours using the “yes > /dev/null command and GPuTest. So far so good. Be sure to try removing RAM sticks as part of your trouble shooting process. By the way, the RAM is Crucial 1333MHz 4GB x 4 sticks.