The processor is heated under dropsy up to 100 degrees. Are there experts?

Question

Processors

Good afternoon. Help to find the cause of overheating of the processor. Specification: i7 6700k 4.0g, mother asus z170a, cools a dropsy kraken x62 with two 140mm fans. I applied new thermal paste.
I turn on the computer, the system does not boot, the BIOS gives information that the processor is overheated. I go into BIOS and see a temperature of 89 degrees and the processor frequency starts to fall. I load the system, set the dropsy to 100 percent, the temperature drops to 70 degrees in idle time, but if you open a browser, for example, the temperature reaches 100 degrees. An important note, I handed over the processor under the Intel warranty, they already sent me a new one with a different serial number, but the result is the same. I put a new axis, during the installation of the axis, the overheating indicator on the motherboard did not work. And it felt like the temperature was below 50i. But upon completion of the installation and reboot of the axis, the temperature rose again to 89 degrees.

Answer 1

There is a TPU switch on the Z170-A board - put it in the off position. On the "Ai Tweaker" tab in the BIOS, disable automatic overclocking.
Check that there is good thermal contact between the processor and the heatsink and that the paste is not applied too thickly.
Update the BIOS to the latest version.

Answer 2

Remove protective films

Answer 3

The motherboard may be deformed and the heatsink simply does not reach the processor

Answer 4

All the advice above is correct.
Check the temperature of the coolant through the hose, external radiator, the back of the socket with a thermocouple or by hand (do not burn yourself)

Answer 5

The issue is not cooling. I shot dropsy, anyway, when starting up in BIOS, it’s already 89 degrees and lowers the frequencies, even without loading the axis. This is not the norm. The question is what and where is the problem. The processor is excluded, I hardly got a second one with the same problem.

Answer 6

hello, I'm not a computer scientist, but the law of conservation of energy works.
Measure the power consumption P=U x I.
P=Q=Cm( t1- t2)=4200m(t1-t2) per second for water, (t1-t2) water temperature difference near the processor, m - Pump capacity kg/sec.
Check the pump, pump water from can to can, measure the temperature of the tubes.
Causes; paste ???, poor contact, pump, air in the cooling system - no pressure, if the system is closed there must be a hydrophore, water quality, salt deposits inside the tubes - worsen heat transfer ....