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回答“Faulty CPU/ODD sensors or fans after Dual Drive Kit Upgrade”I had an interesting endeavor with a Mid 2011 iMac 27”. I wanted to replace the broken harddrive with a new 2,5” one and add an SSD on top of it. I got the cable for the second drive and was able get everything up and running - except that the fans were running at full speed shortly after switching the iMac on. The first thing I came across was the issue with the non-standard HDD temperature reporting. I stumbled upon https://www.elvikom.pl/imac-21-5-27-blad-4sns-1-40000000-th00-9-000-po-wymianie-hdd-t50744.html which describes that you can shorten two pins on the harddrive to let the iMac think temperature is normal. I did this on a Sabrent converter frame (3,5” to 2,5”) to avoid soldering directly on the harddrive. Guess what? Fans still spinning at full speed. Then I tried the OWC OWCDIDIMacHDD11 which is similar to the solution offered by iFixit to add an external temperature sensor for the HDD. Aaaand it was still not working. Fans at full speed. I was a bit out of ideas. Some weeks later I gave it...
回答“rechargable toothbrush battery dying fast can it be replaced?”I agree with Jeffrey. I have just published a guide on how to open a Philips Sonicare toothbrush to repair the actuator. There you can see the format of the battery. I think it can be useful when replacing the battery, too.