iMac 21.5 2011 mid ssd installing and jumper wire

Discussion in 'iMac' started by silvereik, Jul 16, 2019.

  1. silvereik, Jul 16, 2019
    Last edited: Jul 17, 2019

    silvereik macrumors newbie

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    Finland
    #1
    I want to install 500gb ssd to my parents old imac but need confirmation about soldering sata wires to disable 100% fan speed.

    What i have found that u need to solder together wire 1 and 4 on SATA power plug (reading from the SATA key side).

    There is also guide to jump wire 2 and 7 but its on the board side and i don't want to dissemble so much.
     
  2. mikehalloran macrumors 68000

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  3. nambuccaheadsau macrumors 68000

    nambuccaheadsau

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  4. mikehalloran macrumors 68000

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    #4
    There are ways to do it. Unfortunately, it eliminates any temp sensor for the drive.

    Doesn’t matter how many report success. Those who do it with HDDs are idiots. With SSDs, it’s only foolish. iMacs get hot inside and it’s worse when fan sensors are disabled.

    Buy the correct part.
     
  5. silvereik thread starter macrumors newbie

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    #6
    Also as mentioned in article connecting pin 2 and 7 on board is apple's own hack when they used ssd. Its foolish to spen 50 dollars for cable what you dont really need. This proper cable is a must yes if u use regular hard drive.
     
  6. vertical smile macrumors 68040

    vertical smile

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    #7
    I'm not going to say you need or don't need a temp sensor for an SSD, as that is for you to figure out.

    But, the iMacs get really hot inside regardless of what type of drive you have installed. Of course a HDD will generate a lot more heat than a SSD, but I still think it is important to have that sensor working properly with the SSD's location being in the center of two high-heat generating components.

    I have an SSD in my 27", and the iMac runs much cooler, but it still gets really hot sometimes.
     
  7. Aiwi macrumors member

    Aiwi

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    #8
  8. mikehalloran macrumors 68000

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    #9
    Yep. Mine does.

    On the 2011? No they didn't.
     
  9. silvereik thread starter macrumors newbie

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    #10
    Anyway i keep you updated for science if i blow it or it will work. I install sdd this or next weekend. If i do believe internet, jumping these pins doesnt disable your fans or make it work wrong. Hdd fan will just spin about idle speed and its good enough. Also when i spec imac temps right now, hdd fan doesnt rampping when hdd is 50-52*C and probably its start to fail. Its a bit noisi and super slow/freezing when there is a lot of hdd usage even after clean os install.

    I take some screenshots before and after to se what fans/temps do.

    If jumping wire from drive side looks sketchy i need to lift board.

    I dont think that apple himself installed solid drives but maybe that it was for repair shops for upgrading drives when people start to demand ssds
     
  10. Mr_Brightside_@ macrumors 68040

    Mr_Brightside_@

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    #11
    I've been curious about this too.
     
  11. silvereik, Jul 17, 2019
    Last edited: Jul 17, 2019

    silvereik thread starter macrumors newbie

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    #12

    I am reading just now imac 2011 technician/repair guide and there it says some models come with ssd and its mounted under cd drive

    Screen Shot 2019-07-17 at 21.47.39.png
    --- Post Merged, Jul 17, 2019 ---
    found it

    Screen Shot 2019-07-17 at 21.52.44.png
     
  12. silvereik thread starter macrumors newbie

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    #13
    Its done and I didn't break it :D

    diskutility.png

    It was very dusty, never opened.

    20190722_185652.jpg

    There some pics what I did with these wires.

    20190722_192914.jpg 20190722_192931.jpg 20190722_194846.jpg 20190722_194857.jpg
    20190722_195738.jpg
    20190722_203250.jpg
     
  13. silvereik thread starter macrumors newbie

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    #14
    Also some temps and fan speeds but feels like hdd fan speed didn't change a lot :D

    I just let it read/write about 100gb, it took long time with hdd

    Before...


    Idle/Some hdd tested
    Screen Shot, idle.png
    about100gb.png

    And after

    idleafter.png
    about100gbafter.png



    Overall it went well and I think its good enough for my parents web surfing and paying pills.
     

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13 July 16, 2019