Hi,
i just upgraded my iMac because the Fusion Drive was not the thing i was expecting.
Two things i didn't like about the Fusion Drive was:
1. It was in sometimes noticeable slow. My previous rMBP with 512GB SSD was real fast, so i noticed it immediately.
2. I still could hear the 1TB WD Drive spinning and is was annoying me.
So i decided to upgrade my iMac.
I took out the 1TB WD Drive and build in an Samsung 840 Pro SSD with 512GB.
I left in the Apple Blade SSD with 128GB (actually 121GB) and i will use it as a bootcamp Partition for Windows 7.
I didn't remove the screen completely, so that the adhesive Tape still holds the screen at the bottom.
After the installation was finished, i started the iMac with CMD-R and did all the things you need to do to get a working system.
Here are some Pictures so you guy's can see how i did it.
Enjoy
Now i just wait on the Genuine Apple Adhesive Tape i ordered from Ebay and then i can close the iMac properly.
Greetings from Switzerland
i just upgraded my iMac because the Fusion Drive was not the thing i was expecting.
Two things i didn't like about the Fusion Drive was:
1. It was in sometimes noticeable slow. My previous rMBP with 512GB SSD was real fast, so i noticed it immediately.
2. I still could hear the 1TB WD Drive spinning and is was annoying me.
So i decided to upgrade my iMac.
I took out the 1TB WD Drive and build in an Samsung 840 Pro SSD with 512GB.
I left in the Apple Blade SSD with 128GB (actually 121GB) and i will use it as a bootcamp Partition for Windows 7.
I didn't remove the screen completely, so that the adhesive Tape still holds the screen at the bottom.
After the installation was finished, i started the iMac with CMD-R and did all the things you need to do to get a working system.
Here are some Pictures so you guy's can see how i did it.
Enjoy

















Now i just wait on the Genuine Apple Adhesive Tape i ordered from Ebay and then i can close the iMac properly.
Greetings from Switzerland
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