Question why my cpu is so hot?

[beagnovski]

it's been a few weeks that I've got this problem that my CPU is so hot in low usage like in 20% it goes even to 80 degrees but when I play games like rainbow six in high quality or rdr2 and there is no problem when I play the games I get upper 100 fps and the CPU usage is around 100% but the temperature is around 70 or 80

CPU: Intel i5 9400 2.90Ghz
GPU: GeForce GTX 1660
memory: 32g

 

[JohnBonhamsGhost]

what are using to measure system temperatures?

and include your complete system specs including case & system-wide cooling.

 

[beagnovski]

what are using to measure system temperatures?

and include your complete system specs including case & system-wide cooling.

the default intel CPU cooler
and a chassis fan on top of the case

NZXT CAM for monitoring
I didn't have the monitor app but then i hear the CPU fan going up for just opening a chrome or random things then i change the thermal paste and it got worse so i downloaded the app
(sorry for my English )

 

[JohnBonhamsGhost]

you should add multiple intakes and have at least one exhaust near to the CPU.

if temperatures are worse after re-applying thermal paste you probably didn't apply correctly or didn't connect the cooler correctly.
also look into getting a better CPU cooler for a gaming system.

 

[logainofhades]

the default intel CPU cooler

That is a big contributor to your problem. The stock Intel heatsink is junk.

 

[geofelt]

What might have changed since all was well?
At idle, your cpu temperature should be in the area of 10-15c. over ambient.
If temps are ok under load, look at your bios fan profile.
The cpu fan may be running too slow at idle.
A top case fan may be counterproductive.
It could be drawing fresh intake air away from the cooler.
A rear exhaust is usually the only exhaust you need.

Also check that your cooler is mounted well.
Here are my stock instructions on that:
----------------how to mount the stock Intel cooler--------------

The stock Intel cooler can be tricky to install.
A poor installation will result in higher cpu temperatures.
If properly mounted, you should expect temperatures at idle to be 10-15c. over ambient.

To mount the Intel stock cooler properly, place the motherboard on top of the foam or cardboard backing that was packed with the motherboard.
The stock cooler will come with paste pre applied, it looks like three grey strips.
The 4 push pins should come in the proper position for installation, that is with the pins rotated in the opposite direction of the arrow,(clockwise)
and pulled up as far as they can go.
Take the time to play with the pushpin mechanism until you know how they work.
Orient the 4 pins so that they are exactly over the motherboard holes.
If one is out of place, you will damage the pins which are delicate.
Push down on a DIAGONAL pair of pins at the same time. Then the other pair.
When you push down on the top black pins, it expands the white plastic pins to fix the cooler in place.
If you do them one at a time, you will not get the cooler on straight.
Lastly, look at the back of the motherboard to verify that all 4 pins are equally through the motherboard, and that the cooler is on firmly.
This last step must be done, which is why the motherboard should be out of the case to do the job. Or you need a case with a opening that lets you see the pins.
It is possible to mount the cooler with the motherboard mounted in the case, but you can then never be certain that the push pins are inserted properly
unless you can verify that the pins are through the motherboard and locked.

If you should need to remove the cooler, first run the cpu to heat it up and soften the paste before shutting down and powering off the pc. That makes it easy to unstick the old cooler.
Turn the pins counter clockwise to unlock them.
You will need to clean off the old paste and reapply new if you ever take the cooler off.
Clean off old paste with alcohol and a lint free paper like a coffee filter.
Apply new paste sparingly. A small rice sized drop in the center will spread our under heat and pressure.

It is hard to use too little.
----------------------------------------------------------------------------------

 

[beagnovski]

That is a big contributor to your problem. The stock Intel heatsink is junk.

I know but It was ok idk why now this is happening

 

[beagnovski]

The stock Intel cooler can be tricky to install.
A poor installation will result in higher cpu temperatures.
If properly mounted, you should expect temperatures at idle to be 10-15c. over ambient.

To mount the Intel stock cooler properly, place the motherboard on top of the foam or cardboard backing that was packed with the motherboard.
The stock cooler will come with paste pre applied, it looks like three grey strips.
The 4 push pins should come in the proper position for installation, that is with the pins rotated in the opposite direction of the arrow,(clockwise)
and pulled up as far as they can go.
Take the time to play with the pushpin mechanism until you know how they work.
Orient the 4 pins so that they are exactly over the motherboard holes.
If one is out of place, you will damage the pins which are delicate.
Push down on a DIAGONAL pair of pins at the same time. Then the other pair.
When you push down on the top black pins, it expands the white plastic pins to fix the cooler in place.
If you do them one at a time, you will not get the cooler on straight.
Lastly, look at the back of the motherboard to verify that all 4 pins are equally through the motherboard, and that the cooler is on firmly.
This last step must be done, which is why the motherboard should be out of the case to do the job. Or you need a case with a opening that lets you see the pins.
It is possible to mount the cooler with the motherboard mounted in the case, but you can then never be certain that the push pins are inserted properly
unless you can verify that the pins are through the motherboard and locked.

If you should need to remove the cooler, first run the cpu to heat it up and soften the paste before shutting down and powering off the pc. That makes it easy to unstick the old cooler.
Turn the pins counter clockwise to unlock them.
You will need to clean off the old paste and reapply new if you ever take the cooler off.
Clean off old paste with alcohol and a lint free paper like a coffee filter.
Apply new paste sparingly. A small rice sized drop in the center will spread our under heat and pressure.

It is hard to use too little.
----------------------------------------------------------------------------------

every thing seems fine

 

[beagnovski]

recently im getting low fps

 

[logainofhades]

I know but It was ok idk why now this is happening

Make sure everything is clean. Make sure all the pins are fully seated, on the cooler. You might need to redo the thermal paste on it. I would recommend getting a better cooler though. You don't have to go real expensive, to get a far superior unit.

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CPU Cooler: be quiet! Pure Rock Slim 2 CPU Cooler ($25.90 @ B&H)
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