Stability issues after upgrading from i7-8700k to i9-9900k on z370 motherboard - PC Technical Support - HWzone Forums
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Stability issues after upgrading from i7-8700k to i9-9900k on z370 motherboard


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Hello everyone. 

I have a motherboard z370 Gaming K6, updated to the latest BIOS. Without overclocking or changing except for the acceleration of the memories. 

This week I switched between the processors and the computer went up as usual, everything looked just fine. When I checked the temperature I saw that the idle is sitting around 35 degrees. I ran Cinebench20 and the temperature was around 98 degrees but the computer finished the run and the result was quite surprisingly good (4841 to 9900K versus 3280 of 8700K) on the one hand wonderful but when I ran Prime95 the computer crashed after about twenty minutes. My fans are controlled by And aim to reach maximum action already at about 70 degrees. 

 

I think the problem is with the tensions, they feel too high for me ... attach here Of Hwmon in IDLE and under load (Cinebench).

What do you say?  

 

My computer specification is:

Asrock z370 Gaming k6

G.skill 64GB 

GTX 1070 Gainward 

Power Supply 750W Platinum 80+

CPU Cooling: ARCTIC Liquid Freezer 240

 

Thanks in advance

 

 

9900K_LOAD_HWmon.JPG

9900K_IDLE_HWmon.JPG

Edited By Aa'ariel
I forgot to add the cooling type ...
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No abnormal tension appears.

What is the frequency?

Make default values ​​in BIOS and check.

You may not have put the ointment on the processor properly, or it may not be sitting well.

Make sure all the fans are running and that the pump is working.

Feel if there is hot air at the exits of the case.

https://siliconlottery.com/pages/statistics

image.png.940eb91c09b680953aef293d2e688e7c.png

 

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Hey thanks. 

 

I think I put the ointment well, hot air comes out of the fans - the set up of fans by the way is: 2X140 Intake front, the 2nd (get four) of The water Exhaust up and another one in the back wall also as Exhaust 

According to the table you sent my VCORE is high, under load it reaches 1.4 plus .. As mentioned, works on STOCK without any game or

Also note that in the photos I sent the motherboard remains relatively high temperature I think the VRM of this motherboard is good so it is also not what affects in my opinion. 
I switched to the default values ​​of the motherboard and really got an improvement of about 5-7 degrees under load and also in the IDLE, which makes me believe that it can also be improved with correct values ​​of the various voltages. 

I do not understand in depth everything related to tensions, but remember that there is something responsible for the possible deviation of the tension and maybe it is not aimed correctly ... 

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You did not answer what the frequencies were.

1.4V When how many cores in effort?

According to your picture it was 1.28V.

The fewer core facts the frequency increases.

You can set V offset, raise or lower voltages at a fixed value, in which case the software shows the actual voltage.

Most likely your board like most boards changes the default settings of For turbo duration to improve performance, you can change manually.

https://www.anandtech.com/show/13544/why-intel-processors-draw-more-power-than-expected-tdp-turbo

Edited By none77
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