Asked by: Dairo Arrojo
technology and computing computer peripherals

Can you use an old iMac as a second monitor?

Last Updated: 29th January, 2020

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The 27-inch iMac has a bi-directionalMiniDisplayPort or a Thunderbolt port (depending on the model)thatcan be used to drive a second monitor. The sameMiniDisplayPort or Thunderbolt port can be used as a videoinputthat allows your iMac to serve as a monitorforanother Mac.

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Keeping this in view, how can I use my iMac as a second monitor?

How to Use iMac As a PC Monitor

  1. Shut down the Windows PC and iMac.
  2. Plug the video cable into the Mini DisplayPort connector onyourPC's video card.
  3. Plug the second end of the video cable into the MiniDisplayPortconnector on the back of the iMac, to the left of theEthernetport.
  4. Turn on the PC and iMac.

Additionally, can I use my 2017 iMac as a monitor? Apple has definitively stated that new 2017iMacswill not support Target Display Mode, a featurethatpreviously allowed some iMac models between 2009 and2014 touse their built-in display as anexternalmonitor for another Mac connected viaMiniDisplay Port or Thunderbolt.

Similarly, can you use a 2009 iMac as a monitor?

Yes an iMac will work as a screen foraregular PC, but only with 27" models of Late 2009,2010iMacs. If those conditions are met then theiMacsupports what is called Target Display Mode,akausing your iMac as a display.

How do I use my old iMac as a monitor?

Entering Target Display Mode

  1. Turn on your iMac, and make sure the other Mac isloggedin.
  2. Connect the Mini DisplayPort or Thunderbolt cable betweenthetwo computers.
  3. Press Command + F2 on the keyboard of the iMac that you wanttouse as a display.

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Can you use a 2008 iMac as a monitor?

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Apple iMac Ports
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What does command f2 do on a Mac?

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