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> An easy solution to replace the hard drive in a 2011 iMac, 18/05/2011 - Your reactions
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machmeter
post May 17 2011, 10:58 PM
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Last week, the announcement of the difficulties linked to the replacement of the hard drive in the 2011 iMac lead to an outcry by OWC. It was probably too much as it is easy to go around the problem quite easily. However, the solution, short-circuiting some pins in the power supply of the hard drive was not very "clean". Some of our readers from Gravis, a German reseller, developed a very interesting solution.





they developed a little component, which will be able to replace the sensor inside the hard drive. it can measure the temperature and send it to the motherboard so the speed of the fan can be adjusted.
This little component called cBreeze will work with any 2009 or later model of iMac. No price has been set for now, and it should be widely available in June.


We can only congratulate them for providing everyone with an efficient solution that fast.
By Machmeter, original by Lionel
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Greentree
post May 18 2011, 01:56 PM
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You mention the 2009 model, where I can see it would be easy to come up with a temp sensor replcement when it's a seperate cable. but on the 2011 imac they are using the power cable, how can the solution for the 2009 and the 2011 be the same?

Anyway here's a link to their article


http://translate.google.com/translate?hl=e...avis-cbreeze%2F

This post has been edited by Greentree: May 18 2011, 02:04 PM
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machmeter
post May 18 2011, 04:04 PM
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QUOTE (Greentree @ May 18 2011, 02:56 PM) *
You mention the 2009 model, where I can see it would be easy to come up with a temp sensor replcement when it's a seperate cable. but on the 2011 imac they are using the power cable, how can the solution for the 2009 and the 2011 be the same?

Anyway here's a link to their article


http://translate.google.com/translate?hl=e...avis-cbreeze%2F

We don't have the details yet. We'll test it and post more extensively about it in the near future.
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dillweed
post Jun 21 2011, 04:27 PM
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QUOTE (machmeter @ May 18 2011, 11:04 AM) *
QUOTE (Greentree @ May 18 2011, 02:56 PM) *
You mention the 2009 model, where I can see it would be easy to come up with a temp sensor replcement when it's a seperate cable. but on the 2011 imac they are using the power cable, how can the solution for the 2009 and the 2011 be the same?

Anyway here's a link to their article


http://translate.google.com/translate?hl=e...avis-cbreeze%2F

We don't have the details yet. We'll test it and post more extensively about it in the near future.


Are there any updates on this? I would like to see this made available.
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machmeter
post Jun 22 2011, 01:58 AM
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We're currently writing a complete article about that. It's taking a little longer than expected, but it should be online soon.
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moldcat
post Jul 26 2011, 09:49 AM
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QUOTE (machmeter @ Jun 21 2011, 05:58 PM) *
We're currently writing a complete article about that. It's taking a little longer than expected, but it should be online soon.


Any update on this?
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Mojcardon
post Sep 29 2011, 01:33 PM
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Any update or another solution for hd replacement on 2011 imacs?
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osoamazin
post Feb 22 2012, 03:43 PM
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QUOTE (machmeter @ Jun 21 2011, 07:58 PM) *
We're currently writing a complete article about that. It's taking a little longer than expected, but it should be online soon.


Any update on this solution or article? I know this is an old thread....
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Jon-thebookyard
post Jan 29 2013, 05:45 PM
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QUOTE (dillweed @ Jun 21 2011, 03:27 PM) *
QUOTE (machmeter @ May 18 2011, 11:04 AM) *
QUOTE (Greentree @ May 18 2011, 02:56 PM) *
You mention the 2009 model, where I can see it would be easy to come up with a temp sensor replcement when it's a seperate cable. but on the 2011 imac they are using the power cable, how can the solution for the 2009 and the 2011 be the same?

Anyway here's a link to their article


http://translate.google.com/translate?hl=e...avis-cbreeze%2F

We don't have the details yet. We'll test it and post more extensively about it in the near future.


Are there any updates on this? I would like to see this made available.



QUOTE (moldcat @ Jul 26 2011, 08:49 AM) *
QUOTE (machmeter @ Jun 21 2011, 05:58 PM) *
We're currently writing a complete article about that. It's taking a little longer than expected, but it should be online soon.


Any update on this?



QUOTE (Mojcardon @ Sep 29 2011, 12:33 PM) *
Any update or another solution for hd replacement on 2011 imacs?



QUOTE (osoamazin @ Feb 22 2012, 02:43 PM) *
QUOTE (machmeter @ Jun 21 2011, 07:58 PM) *
We're currently writing a complete article about that. It's taking a little longer than expected, but it should be online soon.


Any update on this solution or article? I know this is an old thread....



I see no one has responded to the reoccurring questions about the earlier models. Just to start off, the resolution for the 2011 imac is not the same as the 09/10 models.
There are other options available for the 09/10 models, such as the use of a thermal sensor jumper cable, but i wouldn't recommend this, as its not a stable option. Basically, it will cause the HD fan to spin at idle speed (1000rpm) and it will not alter its speed if the machine, or the hard drive, get hotter. The best option is as follows. (for all the imac ranges from 09-11. there are two solutions here but they are both separate)

Without going into too much technical detail, two coms tracts send the data from the internal SMART disk of the hard drive to the main logic board. The difference between Apples drives and an industry standard drive is that the firmware revision differs... The logic boards in the 2011 iMacs can only communicate with certain revisions of this firmware, and after testing nearly 100 different drives, i have been unsuccessful in finding a revision that works with it without changing the hardware or running the software HDD fan control. (which isn't free by the way, its a £20 download, but you can download a sample of the app to test it beforehand) This also isn't a long term fix. Although it is an easy solution now, all it would take is a software upgrade from apple to cause it to be useless... a patch could then be made by hdd fan controls team, but there may be a time delay, in which you would be stuck with the imac fans spinning at nearly 6000rpm instead of the idle speed of 1000rpm... its loud to say the least.

With the 2009 and 2010 iMacs that use the internal SMART disk to convey the hard drives temperature, i have found certain industry standard firmware revisions do work with it, but each manufacturer uses a different connection type, as they dont use the SATA power cable to send the data, but instead use a separate 2 pin connector cable that goes to the logic board directly. As there is no central source of firmware revisions that will work with it, maintaining stock of the drives that do work has proven to be a pain, as testing a drive from each stock with a 2009 or 2010 machine is not the easiest option. (suppliers are not able to specify firmware revisions when shipping drives in my experience, so restocking a specific revision that previously worked is not possible)

Needless to say, i found a sensor that operates at the same frequency as the internal SMART disk for the 09/10 imac, and its part number is 593-1029 (you can look it up on www.thebookyard.com) its listed as the LCD cable for the same range, but it is compatible with the hard drive port, as i have done rigorous testing on this. all you need to do is replace the current sensor cable, then adhere the sensor to the drive (then it will act as a surface temperature sensor instead of an ambient temperature sensor)

As for the 2011 iMac problem, the easiest solution was to make a cable myself. So, instead of explaining the whole process in all its technical glory, here is the link to the part on the site. http://www.thebookyard.com/product.php?products_id=10085

As for an easier to fit solution, i am currently working on an adapter solution that will not require loosening the screws on the logic board to fit a replacement cable. (As the SATA ports are on the underside of the logic board by the graphics card port)

I have also written a small blog about it here if you want a bit more detail, otherwise i can explain the process in more detail if you'd prefer.
http://thebookyard.wordpress.com/2013/01/2...oblem-resolved/

But all is not lost, as there is always a solution! Even if it takes a bit of creative finagling to do so.
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