![]() IMac SMC Firmware Update 1.1 and iMac 10.8.5 Supplemental Update 1.0 are available for download through Apple's support website or through the Mac App Store's software update mechanism. They aren't the first updates for the new iMacs - when they were first released, Apple released an EFI update to address Boot Camp installation issues. Fixes an issue that may prevent certain USB Bluetooth adapters from working Fixes an issue that may cause external drives to be ejected after the computer goes to sleep The iMac OS X v10.8.5 Supplemental Update 1.0 is recommended for iMacs (Late 2013) using NVIDIA GeForce GT 750M graphics and running OS X Mountain Lion v10.8.5. Power Nap periodically updates apps, such as Mail, Contacts, and Calendar, and will download software updates while your iMac is sleeping. The iMac OS X v10.8.5 Supplemental Update 1.0 is recommended for iMacs (Late 2013) using NVIDIA GeForce GT 750M graphics and running OS X Mountain Lion v10.8.5. This update improves the Power Nap feature in Mavericks on your flash based iMac by allowing it to perform silently, without spinning up the fan. 2013-2014 machines treat hibernation differently than 2015 and later machines. This update is recommended for iMac (late 2013) with flash-only storage. bootable macOS USB drive to reinstall macOS. This is interesting as support for NVIDIA GPUs has been mainly removed in Monterey. My model has the highest specced CPU: an i7 4771, a 256GB SSD, 16GB RAM and the NVIDIA GeForce GTX 780M with 4 GB. Simultaneously, Apple also released a supplemental update for OS X 10.8.5. For the article, I will be using a Late 2013 iMac with model identifier iMac14,2. CPU speeds on the 21.5 models are the same as in last year’s iMacs, but the 27 model gets a boost to 3.2 and 3.4 GHz. Apple has a released a new firmware update - iMac SMC Firmware Update 1.1 - for the new iMacs released in September. The Late 2013 iMac takes last year’s slimmer than ever design and powers it with Intel’s energy efficient Haswell Core i5 CPU (with i7 build-to-order options).
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