CPU temp issue

[inner pulsar]

This is my first build made in 2017.(Roughly)
https://pcpartpicker.com/list/6QRgsh

My CPU temps is hitting 90-100°C idle. Gaming tops up to 100°C then shuts off. I have changed the thermal paste a couple of months ago and it brought the temps down to 70-80°C idle. Gaming is the same.

Is my problem with my AiO as it has been 6 years. AiO temp reaches below 60°C. Pump is still running.

Or thermal paste issue? Would liquid metal be better?

Delid CPU? I am pretty scared to do that as I have never done it.

PC now just turns off after 2mins of running. Even going into BiOS.

[honest quarry]

Tdp is 91 watt of the 6700K

Which is the amounting energy that the ox is giving off to the AIO

The AIO is getting older and needs replacement

Which AIO do you got?

[inner pulsar]

Corsair h115i

[honest quarry]

Yeah checked with your link. 240 mm rad , it might just not be powerful enough anymore, as in clogging up or gummed up insides

[inner pulsar]

Actually it is the 280mm

[honest quarry]

Answer doessnt change

Get a new cooler and you will be fine. And Clean out all the dust of your pc , dust is an amazing isolator

[inner pulsar]

Yeah, I am thinking of going to air cooling. No difference than an AiO?

[honest quarry]

No difference as in go for it, basically get one that’s rated for at least 91tdp

No stock coolers

The bigger the better most of the times as it has , more metal to guide the heat away

[inner pulsar]

Once I do that, should I reset BiOS settings to default?

[honest quarry]

Change the fan curve to what you find desired

That’s all you should need to do