Macbook Pro overheating because Mac OS Sierra

T, That's kind of what I was afraid of after trying the various fixes. Appreciate the detail regarding the experience with the other machines. Your shared experience is helpful. Thank you. I conferred with Apple seeking assistance before coming here. I'm assuming Apple is aware although I'm not sure how they know the heating is an issue unless the calls are documented. Are you familiar with that process. Just trying to learn. Thanks again.

Same here I upgraded yesterday to Sierra - and did enable keychain - poor thing is running hotter then a banshee! Seems that since we Lost Steve Jobs Apple is rolling out stuff that should stay in beta.

Not sure what to do next...and wish Apple would help...

"Same here I upgraded yesterday to Sierra - and did enable keychain - poor thing is running hotter then a banshee! Seems that since we Lost Steve Jobs Apple is rolling out stuff that should stay in beta.

Not sure what to do next...and wish Apple would help..."

"Not sure what to do next...and wish Apple would help..." Why don't you provide some details in a new thread so that we can try to help you. Statements like "Seems that since we Lost Steve Jobs Apple is rolling out stuff that should stay in beta." do not provide any information that would allow us to help you.

This thread was marked as solved so your "Same here ..." description of the problem should have been solved as well, if indeed your issue is the same.

Start your own thread and provide some details that will help us to help you.

Writing an effective Apple Support Communities question

ToddK1 wrote:

Seems that since we Lost Steve Jobs Apple is rolling out stuff that should stay in beta.

Trying to blame all problems on Steve's death is getting a bit old, not to mention really tacky, after 5 years of it.

I've done EVERYTHING that has been suggested and things work for a while, but then my Pro laptop goes right back to running hot again. This problem for me is when I am using Safari. When I use Chrome there doesn't seem to be an excessive CPU usage creating a lot of heat. I am SO tired of resetting the SMC all the time, which only works for a short while. Does anyone know if Apple is aware of this egregious problem? HORRIBLE!!!!! I am so sorry I upgraded. What's happened to Apple under Tim Cook?

secd was at 85-90 % all the time.

That solution works for few. If not you can try this:
Open finder and go to User>library>keychain folder.

Move keychain folder to the trash, ( but don't empty the trash )
Restart your computer.

Open terminal and write as follows:

launchctl stop com.apple.secd

killall secd

launchctlstart com.apple.secd

Move back the files from keychain in the trash, to Keychain original folder.

It worked on my MacBook Pro med2014.

Now the secd process is 0,0% and the laptop running fresh like a tomato.

CPU usage dropped... Temperature became cool... Battery drain back to normal.

You are my hero!!! Wish you a happy long life!!! 😀

(I read many posts indicating that overheating can occur again)

I had the same problem and I did exactly what you suggested and it worked! I had almost forgotten that while installing Sierra I had skipped one step and that was the problem. Thank you for your help.

I tried everything else I found online but turning on the keychain in iCloud prefs did the trick. Fan is quiet, battery holds the charge longer and tells me I have a lot more time left on it than it was saying before. And my thighs aren't burning. Whoever you are, thank you. I saved myself $150, which was what the local City Mac store wanted to replace the (perfectly ok) battery.

Battery still draining super fast, but the cooling is way up! THANK YOU! iCloud Keychain... sneaky.

I too, am getting annoyed with having to force quit the keychain processes. I do a force quit and my fan and secd go back to normal; however, if I access certain applications or certain items on the internet, in pops those darn keychain processes and I have to force quit them again. I didn't have this problem until I upgraded to Sierra.

Totally worked for me. Thankyou (Y)

My Macbookpro of 2013 so overheated that the motherboard went bust. Apple will not accept responsibility even if I know of another 5 people that had this problem.

Software does not break hardware.