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Introducción

Upgrade up to 16 GB of RAM memory in your 21.5" iMac

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  1. First you need to remove the glue from the edge of the iMac
    • First you need to remove the glue from the edge of the iMac

    • Use a Guitar Pick around the screen to remove the glue

    • Be careful not to damage the iSight camera

  2. Once you are sure the adhesive is removed,  use two heavy suction cups to lift the screen Unplug these cables:
    • Once you are sure the adhesive is removed, use two heavy suction cups to lift the screen

    • Unplug these cables:

    • DisplayPort Cable

    • Power Cable

    • Lift the screen from the iMac

  3. Remove the gray tape from the iMac and the screen itself When reassembling the iMac, put double sided tape on the screen and the iMac
    • Remove the gray tape from the iMac and the screen itself

    • When reassembling the iMac, put double sided tape on the screen and the iMac

  4. Remove the four Torx T10 screws Unplug the SATA cables and remove the hard drive
    • Remove the four Torx T10 screws

    • Unplug the SATA cables and remove the hard drive

  5. Remove these 3 Torx T10 screws After you remove the screws, remove these cables
    • Remove these 3 Torx T10 screws

    • After you remove the screws, remove these cables

    • Fan Cable

    • Unstick and unplug the camera cable

    • After you remove the fan, remove the hard drive bay removing a single Torx T10 screw

  6. Remove these 2 Torx T10 screws Unplug these 2 cables Unplug 2 more cable below the power board by pressing the clip
    • Remove these 2 Torx T10 screws

    • Unplug these 2 cables

    • Unplug 2 more cable below the power board by pressing the clip

    • The power board is hard to remove from its place, remove it carefully

  7. Remove the cables out of the clip
    • Remove the cables out of the clip

  8. Unplug these 4 antenna connectors When reassembling be sure that the connectors are in the same place
    • Unplug these 4 antenna connectors

    • When reassembling be sure that the connectors are in the same place

    • After that, remove these two Torx T10 screws

    • Move the speaker and unplug the cable from the logic board

    • Remove these other cables

    • For finish, remove these four Torx T10 screws

  9. Unscrew 3 Torx T8 screws from the heatsink, then remove the logic board from the iMac Be careful not to damage the SD card reader with the screw mount
    • Unscrew 3 Torx T8 screws from the heatsink, then remove the logic board from the iMac

    • Be careful not to damage the SD card reader with the screw mount

  10. Flip the logic board over and release the tabs from each side of the RAM Flip the logic board over and release the tabs from each side of the RAM
    • Flip the logic board over and release the tabs from each side of the RAM

Conclusión

To reassemble your device, follow these instructions in reverse order remembering to re-glue the screen.

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