#LATEST KEXT UTILITY INSTALL#
#LATEST KEXT UTILITY 64 BIT#
#LATEST KEXT UTILITY UPDATE#
#LATEST KEXT UTILITY DOWNLOAD#
#LATEST KEXT UTILITY MAC#

Thanks again to MacEFIRom for providing a bloody brilliant tool to extend the life of our 1st gen Intel iMacs. Any idea what this is, and what it is doing? The only strange and new activity I see is a hidden volume called FirmwareSyncd getting automatically mounted and unmounted on occasion. I have not yet tried purchasing or installing Lion, or installing 4gb of memory, but I only assume that those will work now without issue as well.

#LATEST KEXT UTILITY MAC#

There was an annoying bug with these machines that prevented the Mac Aluminum keyboard from working at startup and in SU mode, and now that is even fixed! I also fired up Hardware Monitor - all sensors and fans continued to be well within spec.Д®verything seems to be working beautifully. Just to be safe, at that point I used Kext Utility to clear the kextcache, and ran Applejack in SU mode to rebuild permissions and clear other caches.

Luckily, performing another reboot solved this issue. However, both the network and the airport cards were no longer recognized (all other hardware looked okay). The machine booted to the desktop, and System Prefs now successfully reported it as a iMac5,1.

#LATEST KEXT UTILITY INSTALL#

Not sure why that is, but after performing the install again in regular boot mode, closing all open apps and disabling Little Snitch beforehand, upon reboot the firmware upgrade process kicked off as expected. But upon install and reboot no EFI upgrade was performed. I first had tried running the tool while in Safe Mode, thinking that would be best to minimize any potential conflicts. I am very pleased to report that my iMac is working perfectly post upgrade. I know that the Core Duo proc is not upgradable, but do you suppose that the firmware on it could also be upgraded to lift the memory limit and/or fool the Lion installer? Just curious - I also own a MacBook 1,1 that also has the 2GB limit and is not supported by Lion. I will make the firmware upgrade this weekend, and will report how it goes. Your awesome little tool extends that even further. I continue to be amazed how my 5+ year old machine continues to be a relative speed demon with minimal ongoing effort and cost. You just breathed new life into my iMac 4,1 (upgraded to Core 2 Duo and a SSD). I hope you enjoy the benefits of extending the value of your iMac4,1, or being able to change your system back and forth for development purposes. There have also been requests for a MacMini1,1 and MacMini2,1 firmware tool, and although there doesn't appear to be a MacMini2,1 firmware image in any of the Apple provided downloads, I'm looking into the feasibility of extracting an image using a tool in the rEFIt package, so stay tuned. Everything is left on the RAM disk for you to look at and study, if needed. The program creates a small RAM disk, downloads the needed files, copies all of the scripts to the RAM disk, and then runs the scripts.

#LATEST KEXT UTILITY DOWNLOAD#

The download does not contain any firmware updater files or image files.

If you have an iMac5,1 the program will warn you about downgrading, but will still allow the firmware update. The program checks the iMac model and will only install the iMac5,1 firmware on an iMac4,1, or the iMac4,1 firmware on an iMac5,1, whichever is appropriate.

#LATEST KEXT UTILITY UPDATE#

If you have a CPU in an iMac5,1 that isn't supported in the iMac4,1, the system will not boot after the update until a compatible CPU is installed. As usual, you can upgrade or downgrade at will. The core file set has been tested by a forum member (Thanks Martin), and while I don't have an actual iMac to test on, the files created for the firmware upgrade perfectly match the core file set that has already been tested.

This firmware upgrade removes the 2GB RAM limit, properly identifies the Core 2 Duo CPUs, and Lion will install and run just fine. A lot of people have upgraded their CPUs, but are still stuck with the 2GB RAM limit and have to hack Lion to get it to run.

#LATEST KEXT UTILITY 64 BIT#

The iMac5,1 came with a Core 2 Duo CPU, and can take 4GB of RAM, and is a 64 bit platform, even though the kernel can only boot in 32 bit due to 32 bit EFI. The iMac4,1 came with the Core Duo processor, which was limited to 2GB of RAM, and was only a 32 bit CPU. This model was the first iMac introduced with an Intel processor in 2006, and they later updated the platform with Core 2 Duo CPUs. I was asked by a couple of fellow forum members to write a firmware tool for the iMac4,1 and iMac5,1.

Latest kext utility