Temperature Sensor on replacement HDD (1TB Seagate Barracuda)

All you really need to do is satisfy the machines need for a sensor input. We use to do this with a external thermal sensor for an optical drive from a different model of iMac. I don't remember the part or model numbers. Sorry.

It worked like a charm. Was a cheap solution and worked with any HD. There is also the OWC universal solution that seems needlessly complex and expensive to me.

the jumper blocks on the Seagate Barracuda are not for temperature sensors. Connect the power and the data cables, and do not connect anything to the jumper pins.

OWC is hands down the best 3rd party Mac retailer with equally as impressive support. You simply will not find any outfit that can answer Apple questions as well as they can and I deal with Seagate on a weekly basis with a number of systems I support.

Prior to 2009 any drive that fix could be used in an iMac the temperature sensor was affixed to the outside of the drive. My understanding is that starting with the 2009 iMac models Apple switch to using drives with an internal temperature sensor and that each manufacturers pin out for the temp cable was unique.

What this means is that to replace a drive in one of there iMacs a drive from the same manufacturer has to be used. The cable for the temp sensor in the iMac is manufactured for a particular drive.

If different information regarding this please post it as this is something that comes up from time to time.

regards

Fortunately, you can reuse the cable that came with your iMac as long as you replace the drive with another model from the same manufacturer we have confirmed works properly with this thermal sensor cable.

http://blog.macsales.com/2751-proprietary-cable-can-put-the-brakes-on-upgrading- late-09-imacs

You may wish to use HDD Fan Control to see if it will regulate the drive fan. There is a trial version.

http://www.hddfancontrol.com/

The page WZZZ linked to has a lot of good information concerning this. Unfortunately they don't list Hitachi drives only WD and Seagate so it's not possible from that page to know if the 2 drives you have are compatible.

You could try the Hitachi site to see if you can get the specs for the 2 drives to confirm if the temp sensor pinouts are identical.

The original problem was a dead HD not a fan problem right? It is possible that there were two problems with the system, the dead HD and something with the fan circuitry. But that's not as probable as something with the new drive and cable.

I'd try to find the specs on the 2 drives first to confirm the temp sensors are the same and then go from there. You could also try calling OWC (the company behind the page linked to in WZZZ's post) There support is pretty good if you describe the situation they may be able to tell you right off if the drive you have will work.

And thank you disk manufactures for creating a problem were none existed before. 😠

Where can I buy a heat sensor cable for a western digital hd?

Google or the search engine of your choice.

Hi I replaced my 1TB Seagate HDD with a Western Digital HDD and the temperature cable didn't fit, so i left it unconnected. The fans started at max speed, but i installed the free software Aristotle123 speaks:

http://exirion.net/ssdfanctrl/

And selected the SMART option, the fans dropped to 1100 rpm and now all is well.

The software is free but it works great, i even donated some €€ to the guy.

SO you don't need a cable, just install this software and youre done.

My 2TB drive, Imac late 2009, 27" is about to fail according to open s.m.a.r.t. reporter. I have a hitachi drive with the 2 pin connector. There is however no way that I am able to get a Hitachi replacement. I have even contacted Hitachi and in the area where I am they are not selling. So I am stuck with either WD or Seagate. I contacted Apple but no luck there too. Though they seem to be able to change the connector cable for a staggering 35 USD. It is most probably worth 10 cents or less and it comes straight from China were I stay right now. Apple must have lost it somewhere, a few weeks ago I got a bill of 25 dollar for a few screws that they had lost during a repair on an MBA.

Is there anyone out there who knows where to buy a replacement cable online. The cable is so tiny that it makes it way even through the Chinese mail. It is not even about the money but about the service.

Did you try eBay?

Download the free software sddfanctrl and install it and you wont need a cable for the temperature monitor because the software will measure it from the smart status

Found the cable...

922-9229 Cable, Temp Sensor, Optical