Question HELP After Mother Board update my CPU overheating and it is consuming above normal

[Takahiro_k]

Hi, i had a Gigabyte Aorus B360 Gaming 3 with a Intel Core i5 8400,
at full load (boost mode on 3811MHz), the consumption was 46w with a temperature of a maximum
of 71°C with original intel Cooler box, I don't know what the voltage was before .

And the motherboard stopped working.

I got a Asus TUF B360m-plus gaming S from China and now, my i5 8400, with
same cooler and the same thermal paste, got at full load (boost mode on 3811MHz),
a consumption of 77w with a temperature of a maximum of 85°C,

Screen shot with more informations.
https://prnt.sc/cgPyCxK8bgu8

And now I can only use the processor at 2.8Mhz and have poor performance.

Some one know why this is happening and how i can setup it in BIOS to "normal"?
I really don't know what else to do.

My complete Setup:
Intel Core i5 8400
Asus TUF B360m-plus gaming S
AMD Radeon RX6600 8GB
PSU: Super Flower 750w 80 Plus Gold

 

[white.a.drew]

Hi, i had a Gigabyte Aorus B360 Gaming 3 with a Intel Core i5 8400,
at full load (boost mode on 3811MHz), the consumption was 46w with a temperature of a maximum
of 71°C with original intel Cooler box, I don't know what the voltage was before .

And the motherboard stopped working.

I got a Asus TUF B360m-plus gaming S from China and now, my i5 8400, with
same cooler and the same thermal paste, got at full load (boost mode on 3811MHz), a consumption
of 77w with a temperature of a maximum of 85°C,

Screen shot with more informations.
https://prnt.sc/cgPyCxK8bgu8

And now I can only use the processor at 2.8Mhz and have poor performance.

Some one know why this is happening and how i can setup it in BIOS to "normal"?
I really don't know what else to do.

My complete Setup:
Intel Core i5 8400
Asus TUF B360m-plus gaming S
AMD Radeon RX6600 8GB
PSU: Super Flower 750w 80 Plus Gold

Did you put new thermal paste on or ligit the same old paste you had before swapping mobo

 

[Takahiro_k]

Hi, yes, paste reapplied after switching.
I think the problem is not the cooler or thermal paste or the processor, I think it is some setting in the BIOS because now the processor consumes a maximum of 77w and before it only consumed a maximum of 45w at 3811MHz.

 

[white.a.drew]

Hi, yes, paste reapplied after switching.
I think the problem is not the cooler or thermal paste or the processor, I think it is some setting in the BIOS because now the processor consumes a maximum of 77w and before it only consumed a maximum of 45w at 3811MHz.

Sounds like it's set to auto oc and if so it's over heating it what happens if you try turning off auto boost

 

[Takahiro_k]

Sounds like it's set to auto oc and if so it's over heating it what happens if you try turning off auto boost

Its runs oerfectly, but i have a bad performance.
https://prnt.sc/BJ4MipSnLVO7
The thing is: Before this %&%$ mother board, my processor run at 3811MHz (boost mode on), at 71 degrees and the consumption was around 45w core voltage around 0.960v
Now if i turno boost mode on i get 85 degrees with a 77w and core voltage around 1.008v... i really dont understand wyh its happening.
Before, flight simulator run at 1080p around 60fps, now i have to turn boost mode off and got 56fps at 900p.

[edit]
I used CPU load calibration at level 7 and got 9.76v with 66w and temp of 81 degrees