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Q: iMac Startup Red-green Apple Logo Problem
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Sep 29, 2016 5:06 PMby sterling r,Howdy ifmyelse,
It looks like you are getting a graphical anomaly when you start the computer centered around the Apple logo. I would start by resetting your NVRAM, which you normally would reset for graphical issues:
How to Reset NVRAM on your Mac
Thank you for using Apple Support Communities. -
Sep 30, 2016 9:41 AMby sterling r,I appreciate the info and the additional info. Next reset your SMC:
Reset the System Management Controller (SMC) on your Mac
If the issue persists, then we will next have to look into reinstalling the operating system. First make a backup of your computer using Time Machine:
Use Time Machine to back up or restore your Mac
You can find a guide to reinstalling macOS here: Let us know if the SMC reset fixes this, or if we can help further. -
Oct 1, 2016 1:10 PMby alex_h1,Thank you for using the Apple Support Community. Due to the nature of your issue or question you may find more information by using another one of Apple's support resources - https://getsupport.apple.com/GetproductgroupList.action.
