Plug the bootable installer into a Mac that is connected to the Internet and compatible with the version of macOS you're installing. Press and hold the Option (Alt) ⌥ key immediately after turning on. Give your computer a much-needed upgrade with this PNY 8GB DDR3 RAM. It's designed to fit in a compatible notebook or laptop, and the 1600MHz frequency speed ensures data can quickly be transferred to the stick to reduce or even eliminate delays. This PNY 8GB DDR3 RAM is compatible with 1.35-volt motherboard RAM. Timetec Hynix IC 64GB KIT (4x16GB) Compatible for Apple DDR4 2666MHz for Mid 2020 iMac (20,1/20,2) / Mid 2019 iMac (19,1) 27-inch w/Retina 5K Display PC4-21300 / PC4-21333 CL19 SODIMM Memory. Apple's own RAM checks You can easily check the RAM using your Mac's built-in tests. Restart or boot up your Mac and hold D while it boots; this will take you to the diagnostics screen.
When I 'eject' a USB memory stick, ready to remove it from the USB port, I expected it to be powered down and its light go out (as 'Removing' does in a Windows machine). This is not the case with my iMac and I power down the iMac rather than hot unplug the Memory Stick. If after having 'elected' the memory stick I leave it in the machine, a few minutes later the memory stick appears on my Desktop as if I had just plug it in. Is this correct or is my iMac faulty?
Thank you Damina iMac Core2 Duo Mac OS X (10.4.8)
iMac Core2 Duo, Mac OS X (10.4.8)
Up to 500 mA at 5V. To learn which specification is supported by a type USB-A or type USB-C port on your Mac model: Choose Apple menu About This Mac, click Support, then click Specifications.
Posted on Oct 17, 2006 5:24 AM
These advanced steps are primarily for system administrators and people who are familiar with the command line. You don't need a bootable installer to upgrade macOS or reinstall macOS, but it can be useful when you want to install it on multiple computers without having to download the installer each time.
What you need to create a bootable installer
Download macOS
Use the 'createinstallmedia' command in Terminal
Big Sur:*
Catalina:* Adobe acrobat pro dc update mac.
Mojave:*
High Sierra:* As seen on the internet album zip.
El Capitan:
* If your Mac is using macOS Sierra or earlier, include the
--applicationpath argument and installer path, similar to the way this was done in the command for El Capitan.
After typing the command:
Use the bootable installerImac Memory Size
Determine whether you're using a Mac with Apple silicon, then follow the appropriate steps:
Imac Memory DiagnosticApple silicon
Intel processor
Learn more
For more information about the
createinstallmedia command and the arguments that you can use with it, make sure the macOS installer is in your Applications folder, then enter the appropriate path in Terminal:
Asus Memory Stick
Adobe reader x64 offline installer. A bootable installer doesn't download macOS from the Internet, but it does require an Internet connection to get firmware and other information specific to the Mac model.
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