IMac 27" mid-2010 as a second screen

Hi,
I recently got a MacBook Pro Retina 13" (2015) and I would like to use my iMac 27" (mid-2010) as a second screen.
I already tried it by using a HDMI to Mini DisplayPort cable but it didn't work.
So I've checked on the Internet and as stated in this forum thread (Macbook pro 2014 connect to imac 27 2010), I need to use a Mini DisplayPort to Mini DisplayPort cable and since the Thunderbolt port on my MacBook Pro should handle it.
So I hope someone can confirm me this solution will work.
Thank you by advance.

It's correct.
iMac- How to use your iMac as a Target Display Mode display
Target Display Mode 2009 & 2010 iMacs

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Hi there,
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My question is: Is it even possible to use a second screen with my iMac? Why does it work with my MacBook Pro and not with my iMac? Is it a bug? Do i need a DVI of HDMI? Anyone else suffering this problem?
Your help is very much appreciated!

Are both in Extended Desktop Mode?
Other than that, check out the following threads.
http://discussions.apple.com/thread.jspa?messageID=10960796&#10960796
http://discussions.apple.com/thread.jspa?messageID=11784734&#11784734
http://discussions.apple.com/thread.jspa?messageID=11723943&#11723943

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Click the Utilities icon/folder to see the contents and then drag the items out of the folder upwards onto the Desktop and they will be removed from the folder.

I was using my MacBook Pro Mid-2010 and then the screen went blank, I did a hard restart and went to restart again and it won't startup. The white light comes on and then the computer kinda "clicks" off!

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Execute the procedures in this support article:
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F

OWC is mistaken. I don't know why they keep saying that. (I'm not even certain the OWC blog linked above related to using the same make drive on the late 2009s was ever correct. I had a long phone conversation with an upper level WD tech some time ago who said that the originals were special ordered by Apple.) Those drives have Apple proprietary firmware which puts the temp sensor output to the jumper block, and you cannot just replace with a drive of the same manufacturer. A non-Apple WD drive will not have that connection at the jumper block.
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http://exirion.net/ssdfanctrl/
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Is iMac 27" (mid 2010) Quad-Core Intel Core i7 64-bit kernel ???

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http://support.apple.com/kb/HT3770

Hi,
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*iMac (Early 2008) and later*
MacBook Pro (Early 2008) and later
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Hello, ive been trying to install windows 7 x64 for the past few days.... but i cant pass the black screen after the installation is complete
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PierrotMobile wrote:
I have purchased an IMAC 27 mod 2010 and I would like to install Windows 7 with Bootcamp.
I've tried everything from all sources infos. Impossible to install.
After last screen on windows install, when desktop is created for first user and last boot ... black screen with blinking cursor.
I've been able to run this install from VMWARE from OSX. I've tried to install last version of ATI driver, bootcamp 3.2 ... nothing work.
I'm totally lost from 2 weeks now.
I could I proceed to boot windows 7 on I IMAC ?
Please help
This is an old problem I once ran into, but it's completely unrelated to SP1 which is the purpose of this thread.
Here is the solution:
http://support.apple.com/kb/TS3173

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Upgrading the RAM may help speed things up, but does nothing to help the hard drive is too close to capacity.
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https://discussions.apple.com/docs/DOC-1689
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The number of beeps should tell you what the problem is.
http://support.apple.com/kb/HT1547

Windows 7 with bootcamp on Imac 27 mid-2010 impossible

I have purchased an IMAC 27 mod 2010 and I would like to install Windows 7 with Bootcamp.
I've tried everything from all sources infos. Impossible to install.
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PierrotMobile wrote:
I have purchased an IMAC 27 mod 2010 and I would like to install Windows 7 with Bootcamp.
I've tried everything from all sources infos. Impossible to install.
After last screen on windows install, when desktop is created for first user and last boot ... black screen with blinking cursor.
I've been able to run this install from VMWARE from OSX. I've tried to install last version of ATI driver, bootcamp 3.2 ... nothing work.
I'm totally lost from 2 weeks now.
I could I proceed to boot windows 7 on I IMAC ?
Please help
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IMac 27" mid-2010 as a second screen

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