2010 iMac HDD sensor

[Zeke D]

Hello, All,
I picked up a quartet of 2010 i3 21.5" iMacs. The 1TB drives are nice, but I'd much rather have some nice 240GB ADATA SSDs. I know I can get the SATA doodad from OWC for $40, but I really hate to pay that much. I know that the sensor receptacle on the logic board is just a two-pin, and that the plug looks identical to the HDD sensor (the one with the plastic bracket) from the 2007/2008 iMacs. Since these can be had for as low at $3 in eBay, I was wondering if anyone had tried these sensors on the 2009/2010 iMacs?

 

[Mr_Brightside_@]

I was just looking at this:
https://web.math.ncsu.edu/matthaught/blog/2015/11/imac-2010-hd-thermal-sensor/

Would love to hear some recent results!

I think your idea is possible too. At $3 it's worth a shot.

 

[Zeke D]

I was just looking at this:
https://web.math.ncsu.edu/matthaught/blog/2015/11/imac-2010-hd-thermal-sensor/

Would love to hear some recent results!

I think your idea is possible too. At $3 it's worth a shot.

I was checking my shed o' junk, and it looks like I have a 20" 2007 that has major LCD burn/rot. Since the "damage" to the LCD is in the lower right corner, I'm hoping that the HDD sensor is intact. I'm going to try it out when I get off work today.
[doublepost=1504798559][/doublepost]I also have a few 2006 polycarb iMacs that have a 4-pin sensor on the ODD. I wonder if I can just plug in the 4-pin connector that goes into the Segate into that instead...

 

[Mr_Brightside_@]

I've made USB infrared sensors for retinas by pulling them out of old Pros and twisting wires; if the sensor fits the socket on the board I think there's a good chance it'll work.

 

[m.x]

Hello, All,
I picked up a quartet of 2010 i3 21.5" iMacs. The 1TB drives are nice, but I'd much rather have some nice 240GB ADATA SSDs. I know I can get the SATA doodad from OWC for $40, but I really hate to pay that much. I know that the sensor receptacle on the logic board is just a two-pin, and that the plug looks identical to the HDD sensor (the one with the plastic bracket) from the 2007/2008 iMacs. Since these can be had for as low at $3 in eBay, I was wondering if anyone had tried these sensors on the 2009/2010 iMacs?

Hi Zeke D, a month ago I decided to upgrade my late 2009 21.5" iMac from an HDD to a Samsung SSD. I didn't want to spend much on any sensor, so I looked for solutions. You could buy a software to control the fans, but the way I did it was by shortening the temperature sensor. Apparently Apple did the same when they installed SSDs in the Macs. It was very easy and works extremely well. The only downside is that you aren't able to monitor the SSD temperature, but I don't think that that data is very important.
This site was very helpful for me. However, it is written in German, but the pictures are very self-explaining. You can see how the guy shortens his sensor. I think that is the most elegant solution.

 

[Zeke D]

It ends up the 2007/2008 HDD temp sensor is a 3-position plug, and the socket on the 2010 is a 2-position. However, the ODD sensor is a two-position plug, and is identical the 2010 HDD plug. The p/n is 593-0493.

Here is the ODD sensor I took out of a 2008 iMac:

Here the SSD is in the 2010 with the ODD sensor taped to the 3.5-2.5 frame that we're all familiar with:

Here is a screenshot from the disk utility:

And finally, a screenshot of MacFanControl reporting the fans at the correct speed:

I was just looking at this:
https://web.math.ncsu.edu/matthaught/blog/2015/11/imac-2010-hd-thermal-sensor/

Would love to hear some recent results!

I think your idea is possible too. At $3 it's worth a shot.