Welcome to MacTalk Australia

the largest Australian community for Apple discussions and topics

» Join the discussions, Register Now!
Results 1 to 7 of 7
  1. #1

    Join Date
    May 2008
    Location
    Melbourne
    Posts
    873

    Default OWC Upgrade Kits for Mid 2011 iMac

    Hello,

    Wondering if anyone here has experience with the upgrade kits from OWC (macsales.com)?

    The two kits I purchased are:

    1) SSD Upgrade Kit - OWC DIY Kit for all Apple 27" iMac 2011 Models for... in stock at OWC

    2) HDD Upgrade Kit - OWC HDD Installation tools & SMC Compatibility... in stock at OWC

    These are both designed for the Mid 2011 iMac.

    Using these kits I installed an SSD (Samsung 850 Evo - 500gb) and a replacement HDD (Seagate 4TB SSHD).

    The reason the the HDD kit is required is due to the iMac's system monitoring. Simply put, if you install a different HDD in the iMac without this kit, the system cannot detect the temperature of the HDD and it causes the HDD fan to run at full speed which makes the computer extremely noisy.

    Now after installing these, both drives work fine. The HDD fan runs normally and is sitting on average about 1200 rpm out of a maximum 5500 rpm.

    The problem I am having is that now both the Optical Drive and CPU fan are running at maximum. 3800 rpm for the optical drive and 4200 rpm for the CPU. For now I have downloaded a free program called 'Macs Fan Control' that allows me to manually set the speed of the fans, both of which I have set to 2500 rpm for the moment. This is mainly to allow plenty of headroom.

    Has anyone else used either of these kits and experienced the same issues? I have lodged a help desk ticket with OWC and am waiting to hear back but thought I would check if anyone here had some ideas.
    ** iMac 3.4ghz QCi7, 16GB RAM, 4TB SSHD, 500GB SSD, 6970 2GB **
    ** MacBook Pro. C2D 2.2ghz, 4gb RAM, 480gb SSD, 8600M GT 128mb **
    ** G5 Dual 2ghz, 4gb RAM, 750gb HD, 6800 Ultra DDL 256mb & XServe RAID 7TB**

  2. #2

    Join Date
    Jan 2005
    Location
    Warrnambool
    Posts
    409

    Default

    Hi Dog,

    I did exactly the same upgrade (although on the 2011 21 inch model) two months ago. Everything works perfectly now, but I had a fan issue at first because I connected the optical drive fan connector reversed on the logic board. But that meant 0RPM on the optical drive fan and this must have been sensed and the other fans ran faster as a result. So check that all fans are plugged in the right way; in theory there is a slot that sort of indicates the right direction, but I know that the optical drive connector is really small, so it's not too hard to plug in the wrong way. Hope that helps you.

  3. #3

    Join Date
    Sep 2008
    Location
    Adelaide
    Posts
    197

    Default

    Hi


    I did the upgrade with mine about 2 yrs ago and installed a 480GB Mercury Electra 6G SSD 2.5" Serial-ATA 9.5mm 6Gb/s Solid State Drive.


    Process was reasonably easy, but I only added the SSD, because I already had a 3 TB HDD in there, nothing else, and my fans were fine.


    Go figure.
    "Some men see things as they are and say why - I dream things that never were and say why not." - George Bernard Shaw

  4. #4

    Join Date
    May 2008
    Location
    Melbourne
    Posts
    873

    Default

    Thanks for the advice milliedog.

    When I get a bit of spare time i'll open her up again and check the orientation of the fan cables.

    Oh for the cases of old.....

    Edit: All OWC has got back to me with so far was "try a restart" and "try zap the pram".

    While I must admit, I hadn't tried zapping the pram yet, it did not help at all and it appears I need to now wait for them to return to work on Monday in the US. :P
    ** iMac 3.4ghz QCi7, 16GB RAM, 4TB SSHD, 500GB SSD, 6970 2GB **
    ** MacBook Pro. C2D 2.2ghz, 4gb RAM, 480gb SSD, 8600M GT 128mb **
    ** G5 Dual 2ghz, 4gb RAM, 750gb HD, 6800 Ultra DDL 256mb & XServe RAID 7TB**

  5. #5

    Join Date
    Oct 2005
    Location
    Melbourne
    Posts
    6,561

    Default

    Fan control was SMC reset I thought.
    Something about Jimby.

  6. #6

    Join Date
    Jan 2005
    Location
    Warrnambool
    Posts
    409

    Default

    Quote Originally Posted by Warthog View Post
    Hi


    I did the upgrade with mine about 2 yrs ago and installed a 480GB Mercury Electra 6G SSD 2.5" Serial-ATA 9.5mm 6Gb/s Solid State Drive.


    Process was reasonably easy, but I only added the SSD, because I already had a 3 TB HDD in there, nothing else, and my fans were fine.


    Go figure.
    Adding the SSD doesn't affect the fans, as the original hard drive still sense temperature. But the thing that I don't get is how iStat Pro is measuring the temperature of the extra SSD added, presumably with a normal SATA cable….

  7. #7

    Join Date
    Sep 2008
    Location
    Adelaide
    Posts
    197

    Default

    Quote Originally Posted by milliedog View Post
    Adding the SSD doesn't affect the fans, as the original hard drive still sense temperature. But the thing that I don't get is how iStat Pro is measuring the temperature of the extra SSD added, presumably with a normal SATA cable….
    Ok. Got you. Sometimes I'm sorry I got rid of it.
    "Some men see things as they are and say why - I dream things that never were and say why not." - George Bernard Shaw

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •