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Released on October 23, 2012. Core i5 or Core i7 Processor. Apple Fusion Drive.

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fan on full speed, and noisey after Mainn hard drive upgrade

H there I just upgraded from 500GB to 1TBHD/SSD hybrid drive. Anyway my fan is on full speed, I am sure its the CPU. I am wondering if maybe I have put it back in back to front? when I was lifting it out, two of the gold headed wires popped out the fan connection, but popped back in no problem and clicked, I checked them, and they weren't damaged. I don't think it is that, unless I put them in wrong place, but am sure I didn't, as they basically fell into place. all my HD and stuff are recognised, but I was having difficulty putting the Wi-Fi wire back in, as it kept popping out. late 2012 mac MIINI, has a separate cover over the Wi-Fi pin, which is annoying, as it makes it more tricky to get in, I think it went in, but maybe came out. would that be an issue, for cpu on full speed. Hey at least I think t is that. I am going to open up and check in morning, it might be HDD fan? Any ideas Folks. Reason for upgrade was swapping my 500gb to my MacBook pro, and upgrading mac mini. Oh Also when unscrewing the fan I broke a screw thread by turning it wrong way, but it is secure with other two screws, and the broken one is still secure enough and stiff, just need to replace that but fan is secure. I don't really want to buy a new fan if I can fix it, I never pulled anything of motherboard, all seems to be fine when on apart from the noise of the fan at full speed. sounds like a hair dryer, or a TV on loud volume with no signal lol. Anyway any tips or ideas would be helpful. Thanks

Soundman Johns.

Update

Hi Dan here are pictures, it has cane away from the board after tightening. it is a clean break, and still fits in hole, but obviously not secure, as this part was connected to motherboard, and do believe would have been machine made, so replacement would be hard to get, saying that I have it, but the screw is stuck inside tight, I need too get players and try get screw out. then maybe glue it. I cant see why this is making fan spin though, I was thinking of getting Loctite super glue thread glue, as metal to metal and is mental stuff, very strong. or solder, but depends if it needs a connection. Any ideas, or tips

regards

Soundman Johns

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Hi there will do that, can I fix it. or am I left with a new hard drive I cant use. I was told I could upgrade by apple. that's if it is the sensor that is

da

There is no sensor here! You're thinking about the 3.5" drives. Most likely you broke off the resistor on the logic board.

da

No joy so far, but i am am on a mission to fix this thing, as my mac mini is running rapid style and is fine, but this noise is doing my head in. I should have said the fan is also running rapid style lol

da

Hey Dan that is what I have done, I need to solder this on I take it, Clean break, so I think this might be the cultrate. Thins is it is not, then I need to get it off again

da

get hand vice grip to hold when I screw out, meant to add. I cant see why this is making my fan spin? Everything on mac mini works fast. I can put my 500GB back IN, BUT THEN I AM STUCH WITH 1tb/SSD HYBRID, CAN I ADD THIS ANOTHER WAY, LIKE DOCK, OR USB, BUT WOULD THAT MAKE T EXTERNAL, I NEED IT FOR MY MUSIC. EDITING. sorry caps loked

da

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If i remember correctly, the original harddrives, like in the iMac (all models previous to Late 2012), has a built-in temperature sensor that you need to account for.

If the logic board can't find the sensor or the sensor gets an odd reading, the fan(s) will go haywire, to make sure that no hardware is damaged due to overheating.

So if i were you, i'd install the original harddrive to see how your Mac Mini responds.

If the fans operate at normal RPM's, then there you go.

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Hi there will do that, can I fix it. or am I left with a new hard drive I cant use. I was told I could upgrade by apple. that's if it is the sensor that is

da

Use this software "http://www.hddfancontrol.com/" it works everytime, you can try it for free. I have NO connection with this company but it has saved my bacon many times. All the best, Fryedfrog

da

I just looked up the Late 2012 model on GSX, and there don't seem to be a stand-alone heat sensor.

Have you tried resetting the SMC (System Management Controller)?

Heres a link: https://support.apple.com/en-us/HT201295

And the how-to:

On Mac Pro, iMac, Mac mini, and Xserve

To reset the SMC on Intel-based Mac Pro, iMac, and Mac mini computers, as well as Xserve:

Shut down the computer.

Unplug the power cord.

Wait fifteen seconds.

Attach the power cord.

Wait five seconds, then press the power button to turn on the computer.

Hope it works!

da

HDDFanControl is a band-aid it doesn't fix the root issue which is really the correct direction here! Fan override software over time is not healthy for your system.

da

I tried the hdd fan app, didn't work. I tried ssd app as well and my fan slowed down, I was about to say nice one, but only lasted 4 seconds and went straight back up again on full.

da

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