To use any of these key combinations, press and hold the keys immediately after pressing the power button to, or after your Mac begins to restart. Keep holding until the described behavior occurs. Command (⌘)-R: Start up from the built-in system.
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Are these the right SSD PCIe blades for iMac Late 2013? Mac Pro (Late 2013) Mac mini (Late 2014) Am I right? Indeed IFixit sells a PCIexpress blade for iMac late 2013 of 21.5' as well 27' but finally I decided to buy a Crucial SSD 550GB model MX200 and works beautifully, the OS boots in only 10 seconds and the speed was increased.
Or use Option-Command-R or Shift-Option-Command-R to start up from macOS Recovery over the Internet., depending on the key combination you use while starting up. If your Mac is using a, you're prompted to enter the password. Option (⌥) or Alt: Start up to, which allows you to choose other available startup disks or volumes. If your Mac is using a, you're prompted to enter the password. Option-Command-P-R: or PRAM. If your Mac is using a, it ignores this key combination or starts up from. Shift (⇧): Start up in.
Disabled when using a. D: Start up from the built-in or utility, depending on your Mac model. Or use Option-D to start up from this utility over the Internet. Disabled when using a. N: Start up from a NetBoot server,. To use the default boot image on the server, hold down Option-N instead. Disabled when using a. Command-S: Start up in.
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Disabled in, or when using a. T: Start up in. Disabled when using a. Command-V: Start up in. Disabled when using a. Eject (⏏) or F12 or mouse button or trackpad button: Eject removable media, such as an optical disc. Disabled when using a.
If a key combination doesn't work at startup, one of these these solutions might help:. Be sure to press and hold all keys in the combination together, not one at a time. Shut down your Mac. Then press the to turn on your Mac.
Then press and hold the keys as your Mac starts up. Wait a few seconds before pressing the keys, to give your Mac more time to recognize the keyboard as it starts up. Some keyboards have a light that flashes briefly at startup, indicating that the keyboard is recognized and ready for use.
If you're using a wireless keyboard, plug it into your Mac, if possible. Or use your built-in keyboard or a wired keyboard. If you're using a keyboard made for a PC, such as a keyboard with a Windows logo, try a keyboard made for Mac. If you're using Boot Camp to start up from Microsoft Windows, set to start up from macOS instead. Then shut down or restart and try again.Remember that some key combinations are disabled when your Mac is using a.
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