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iMac Intel 27" EMC 2309 (Late 2009, Core 2 Duo 3.06 or 3.33 GHz) ID iMac10,1, EMC 2374 (Late 2009, Core i5 2.66 GHz or Core i7 2.8 GHz) ID iMac11,1

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ODD Temp Sensor Cable & AHT

Update - unfortunately need further advice...

After having replaced the missing temp sensor cable with the OWC-solution as recommended, I still have to deal with fan(s) running at full speed. Unbelievable, but I noticed another missing cable! The "ODD temp" connector socket is empty. I then removed all connectors and took out the complete logicboard, hoping to find a loose cable behind it, but: no!

As I wasn't sure what to do next, I first of all got myself the app "TG pro" and took a photo of some of the info provided. I hope someone will thus be able to guide me on my way of fixing my good old one. Thanks for your attention,

Ulli

NB: I also wanted to try the AHT - but neither pressing D nor ALT-D while booting works- I can't find my installation disk anymore and haven't found a download link yet either...

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Update (12/03/2017)

HI Dan,

I can't add a screnshot in a comment, can I? At least, that's why I'm posting an answer...

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Do you have an idea, how I can get hold of the "Apple Hardware Test"?

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You'll need the original grey disks that came with your system, or create a bootable drive and download the AHT from Apples web site. I don't think it will help you here TG Pro did ID the failed sensor as the LCD.

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Well, Thats a good mystery!

The ODD sensor is the sensor thats mounted on the optical drive case. Review this IFIXIT guide: iMac Intel 27" EMC 2309 and 2374 Optical Drive Replacement. Jump the Steps 11 & 17 which its connected to the logic board and the sensor its self. The sensor cable Optical Temp Sensor - Apple P/N 922-9229

If the Optical drive fan is defective follow this IFIXIT guide: iMac Intel 27" EMC 2309 and 2374 Optical Drive Fan Replacement and this is the part: Optical Fan - Apple P/N 922-9150

Update (12/03/2017)

I think I see what happened here! You forgot to plug the LCD sensor back in. Review this IFIXIT guide: iMac Intel 27" EMC 2309 和 2374显示屏更换 jump down to Step8 is it plugged in?

iMac Intel 27" EMC 2309 and 2374 显示屏图片

指南

iMac Intel 27" EMC 2309 和 2374显示屏更换

难度：

中等

—

30 minutes - 1 hour
iMac Intel 27" EMC 2309 and 2374 Optical Drive图片

指南

iMac Intel 27" EMC 2309 and 2374 Optical Drive Replacement

难度：

困难

—

45 minutes - 2 hours
iMac Intel 27" EMC 2309 and 2374 Optical Drive Fan图片

指南

iMac Intel 27" EMC 2309 and 2374 Optical Drive Fan Replacement

难度：

中等

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2条评论:

Dan, thanks for hanging on. Checked the cable, felt plugged in properly. The issue, I guess, is the missing ODD-cable which I'm going to order now. There are even some remains of the glue sticking on the optical drive case...

I just can't believe it - what a f... computer shop I gave my iMac to for an initial graphics card repair. I sent an email to the owner and complained about the missing HDD temp sensor cable two weeks ago and he couldn't even be bothered to reply. Paying about $ 75 just for two missing cables which had been there before is quite a nuisance...

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Problem solved! It was the missing ODD temp cable, "Good old one" is running perfectly now and ready for the Bay - thanks again to you, Dan, and to "JDW" for enouraging to try my own repair.

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