![]() ![]() ![]() Looking through pictures of 6907m listings on ebay you see some with the BLACKCOMB tag on the left or right in big or small text or not at all. Is there a way to spot an unbranded knockoff?Īre there certain makes of the 6970m cards that have a lower probability of failure? Is there a way to tell the difference between the original 6970m's and the ones Apple supplied as part of their much-too-short recall? Or did they just replace a defective card with another identically defective card?ī. Which leads me to some important questions.Ī. an Apple replacement card that hasn't failed. an Apple replacement card that's failed already and been baked.Ĥ. an original card that's failed already and been baked.Ģ. Which is not a comforting thought made even less comforting by the fact that for every listing, you're not entirely sure if it's:ġ. ![]() That leaves only one choice, right? get a re-ball off ebay. So lets say that there are more than a few poor 2011 iMac owners that for whatever reason either can't or won't go through with the bold move of installing an NVIDIA replacement. Web drivers could change this but you are relying on the Nvram to never be reset otherwise web drivers won't load=black screen. After what I have seen with the 770m and Windows (it recognizes the LCD as the first display) it could work. From my experience by burning the Sierra to a Dual Layer DVD and booting it with the 'C' key, graphics never initializes on anything older than 10.13 but this was on the 27" iMac. It's a simple process to do, and may be better than installing whatevergreen/lilu.Īs for booting 10.9.5 on the 2011 iMac I would have to test this by installing it to a SSD and boot it though USB by using 'Startup Disk' in System Preferences. I chose the 14,2 because it shipped with the 780m. This results in faster boot times and less lag in the UI. reboot to the patched Mojave installer, open Mac OS post install and choose "Software Update Patch" and select your Mojave partition and choose patch.įor everyone with a 2011 27" iMac on 10.14.1 I have patched 'AppleGraphicsControl.kext' and 'AppleGraphicsPowerManagement.kext' by finding the iMac14,2: 'Mac-27ADBB7B4CEE8E61' board id and replacing it with our 2011 board id 'Mac-942B59F58194171B'. That's kind of a no sh*t answer on this thread. ![]()
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