iMac Intel 21.5" EMC 2308 Hard Drive Replacement

Введение

This guide is an internal prerequisite and should remain unpublished.

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Шаг 1 Hard Drive

iMac Intel 21.5" EMC 2308 Hard Drive Replacement, Hard Drive: шаг 1, изображение 1 из 1

Before disconnecting the thermal sensor cable, take note of its orientation. It is extremely important to reinstall the connector reversed from the current orientation so the fans will not run at full speed.
Disconnect the thermal sensor by pulling its connector away from the side of the hard drive.
During reassembly, be sure that the thermal sensor connector is connected to set of pins closest to the SATA connectors. If the fans spin at full speed, reverse the connector's position.

I don't understand how to reverse the thermal connector. There's only one way to insert it; unless they mean to reverse the grey and black wires? Confused, but hoping I don't have any fan issues.

Ben Dunkle - 6 сен 2013 г. Ответить

I had the same problem, i have the fan running at high speed, the connectors cannot be reversed. There is only one way to insert on either end.

timzane - 13 окт 2013 г.

Apple used more than 1 brand of hard drive, so some temperature sensor connectors are different.

Andy - 5 янв 2014 г. Ответить

I still don't understand the instruction to reverse the connector. A photo would be helpful. Does this mean to take the connector and turn it upside down from how it was originally connected? What if the socket for the connector will only allow it to be inserted in one manner? I've changed out my hard drive and the fan is on high all the time, so something is wrong, though I thought I had followed the instructions carefully.

HDWriter - 22 янв 2014 г. Ответить

Did you previously have a Toshiba hard drive in your iMac?

Scott Dingle - 23 янв 2014 г.

Didn't reverse. I changed a 500GB Seagate Barracuda to a 2TB Seagate Barracuda with no issues. It would have been helpful if this article had indicated the old and new drive.

Robert - 25 янв 2014 г. Ответить

To do steps 10 and 11 I had to do 12 and 13 first so I could get my hands on the connectors to pull them out. It's quite a tight squeeze to get your hands in otherwise as there is Amytal bar restricting your ability to pull them all the way out.

Jon Pick - 10 июн 2014 г. Ответить

I replaced the hard drive with an Samsung 840 EVO SSD. I used a Newer Technology Adaptadrive bracket (fit perfectly). Since the SSD doesn't have a temperature sensor, I used a suggestion on this forum to just short the sensor plug with a small piece of wire and tape the connector down out of the way against the iMac's case. Works perfectly, and the fans run at minimum speed (verified with http://www.crystalidea.com/macs-fan-cont... ). I wouldn't recommend shorting the sensor for a mechanical hard drive, but for an SSD (which runs cool anyway) there shouldn't be any problem.

isonno - 12 июл 2014 г. Ответить

I perfectly agree with you, I replace too the origin HD with an Samsung EVO 840 1T, no shorting of the sensor, without problems. I just set the fan control with Macs fan control !

Filippo - 7 сен 2014 г.

I am planning on upgrading & replacing the HDD with a SSD. I don't have the Apadtadrive bracket but I have this SABRENT 2.5 to 3.5 Inches Internal Hard Disk Drive Mounting Kit (BK-HDDH). Will this be fine? Here is the link to the product on Amazon (http://tinyurl.com/jkjnk6q)

rupeshbk - 29 дек 2015 г.

I'm trying to replace Seagate 500Gb drive with a new WD 1Tb drive. Can not fit the thermal connector to the WD drive. How does one fit it??

Lee Harris - 18 авг 2014 г. Ответить

You need to replace the Seagate with another Seagate or use software to control the fans.

Scott Dingle - 19 авг 2014 г.

On reassembly, I found there was no place on the hard drive to plug the connector in. Like u, I got a WD drive from iFixit, whereas the Mac came with a Seagate. So i just left the thermal connector dangling. Following startup, however, I am not getting fan noise.

Peter Shenkin - 18 мая 2017 г.

Whoops. I take back what I said about no fan noise. Eventually it started back up....

Peter Shenkin - 18 мая 2017 г.

Note - If you’re replacing the conventional HDD with an SSD, and using the appropriate thermal coupler, you only need to detach the sensor from the main board, you can leave the other end on the Hard Drive you’re removing. This also means that you have no need to worry about the orientation of the connector.

Ian Richardson - 2 дек 2020 г. Ответить

Шаг 2

Disconnect the SATA data cable by pulling its connector away from the hard drive.
Use the flat end of a spudger to help disconnect the SATA power connector from the hard drive.

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