This whole time - during the test account use, and the safe mode boot - the cooling fan has been in full effect the whole time and not turned off, even when restarting (it stops when shut down obviously, but also when the computer is asleep). So, logged back into my normal account and deleted the test account. Kernel_Task (listed at the bottom this time) - still using loads of CPU and RAM. I've attached a screenshot (ignore the ridiculous username I used for this test account): Logged into it, still the same fan speed, and still the same CPU useage. I created a new guest account for this purpose. Linc Davis: I did as you have described above word-for-word.
*Note: If FileVault is enabled, or if a firmware password is set, or if the boot volume is a software RAID, you can’t boot in safe mode.Īfter testing, reboot as usual (i.e., not in safe mode) and verify that you still have the problem. If you’ve forgotten the password, you will need to reset it before you begin. You must know your login password in order to log in. The login screen appears even if you usually log in automatically. Safe mode is much slower to boot and run than normal, and some things won’t work at all, including wireless networking on certain Macs. If you are prompted to log in, type your password, and then hold down the shift key again as you click Log in.When you see the gray Apple logo, release the shift key.Shut down your computer, wait 30 seconds, and then hold down the shift key while pressing the power button.The instructions provided by Apple are as follows: Boot in safe mode* and log in to the account with the problem. The purpose of this step is to determine whether the problem is caused by third-party system modifications that load automatically at startup or login.ĭisconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards. Create a new account in which to test, and delete it, including its home folder, after testing. The “Guest User” login created by “Find My Mac” is not the same. *Note: If you’ve activated “Find My Mac” or FileVault, then you can’t enable the Guest account. Any files you created in the guest account will be deleted automatically when you log out of it. Same problem?Īfter testing, log out of the guest account and, in your own account, disable it if you wish. If you need any passwords or other personal data in order to complete the test, memorize, print, or write them down before you begin. Applications will behave as if you were running them for the first time. While logged in as Guest, you won’t have access to any of your personal files or settings. Don't use the Safari-only “Guest User” login created by “Find My Mac.”
For instructions, launch the System Preferences application, select Help from the menu bar, and enter “Set up guest users” (without the quotes) in the search box. The purpose of this step is to determine whether the problem is localized to your user account.Įnable guest logins* and log in as Guest. Don’t be disappointed when you find that nothing has changed after you complete it. This procedure is a test, not a solution.
Please read this whole message before doing anything.