Trying to use my 2011 imac running high sierra as an external display for a OC via HDMI to miniDisplay port. Unfortunately I tried to book them up and using the windows (
![New iMac Notes: Dual External Display Output, OS X on SSD - No Video Input? [Updated] - MacStories](http://657b072aab060d50f8ce-d7abb53cb376b4947d77643d4b4a48d3.r79.cf1.rackcdn.com/22526_Screen-shot-2011-05-03-at-4.54.03-PM.png "New iMac Notes: Dual External Display Output, OS X on SSD - No Video Input? [Updated] - MacStories")
New iMac Notes: Dual External Display Output, OS X on SSD - No Video Input? [Updated] - MacStories
How to add a second screen on your iMac 2011 onwards - YouTube
Turning a 27" 2011 iMac into an external QHD Display with a Juicy Crumb Dock Lite - YouTube
Turning an iMac into a half-priced Studio Display - 9to5Mac
What to do when your iMac won't turn on?
Use iMac as monitor: 5 Solutions - 9to5Mac
Turning a 27" 2011 iMac into an external QHD Display with a Juicy Crumb Dock Lite - YouTube
Step-by-step Guide to Use iMac as an External Monitor for PC/Mac
iMac (21.5-inch, Mid 2011) - Technical Specifications
Use your iMac as a display with target display mode - Apple Support
![How to Use iMac As a Monitor for PC [Step-by-Step Guide]](https://iboysoft.com/images/en-news/use-imac-as-monitor-for-pc/summary-use-imac-as-monitor-for-pc.jpg "How to Use iMac As a Monitor for PC [Step-by-Step Guide]")
How to Use iMac As a Monitor for PC [Step-by-Step Guide]
Step-by-step Guide to Use iMac as an External Monitor for PC/Mac
How To Add A Second Screen To Your Mac, Connect A MacBook To A Monitor | Macworld
Connecting external monitor(s) to a 2011 iMac | MacRumors Forums
display - Can I connect my Mid 2011 Mac to a second monitor? - Ask Different
Using an iMac as a Monitor Is More Complicated Than You Might Think
![How to Use iMac as Monitor for PC [3 Cases] - MiniTool Partition Wizard](https://www.partitionwizard.com/images/uploads/2021/02/use-imac-as-monitor-for-pc-thumbnail.png "How to Use iMac as Monitor for PC [3 Cases] - MiniTool Partition Wizard")
How to Use iMac as Monitor for PC [3 Cases] - MiniTool Partition Wizard
Old iMac as a monitor - instructions for screen synchro »Sir Apfelot
2009-2011 27" iMac as an external display | MacRumors Forums
/cdn.vox-cdn.com/uploads/chorus_asset/file/13062147/NIK_6994.1419962399.jpg "Apple iMac review (mid 2011) - The Verge")
Apple iMac review (mid 2011) - The Verge
Use an iMac as an External Monitor - YouTube
Mac Setups: iMac 27″ and External Display | OSXDaily
Is it possible to use a 27” mid 2011 iMac as an external monitor for the new M1 Mac Mini? : r/macmini
Can I use a Mid 2011 27 inch iMac (Thunderbolt) as a display for a PC? - Ask Different
