[SOLVED] PC now slow, 50% fps drop from games after aio failed and got 100c

[uchizenmaru]

When my AIO failed my PC always gets 100°C. I tried to reseat, apply new thermal paste, or attach my AIO several times in different positions in hopes that it may still work but it did not. One time my young cousin used it without my permisson playing Roblox for several hours while having 100°C. I decided to use the stock fan after that because I know that maybe my AIO was already broken. But after that my CPU will always start from 70°C. I tried another motherboard Asus h110m and my CPU will start from 40°C. My games now get a bit laggy. Playing DOTA now will just give me around 40~60 fps even in the lowest settings, it will always stay 140++ fps in ultra settings before. Also the same case with other games except for CSGO which is a very light game. I did not try yet playing with Asus h110m motherboard. I tried also clearing my CMOS but still the same. is it my motherboard faulty or my CPU?

PC Specs
CPU: i7 7700
GPU: GTX 1070
RAM: 16GB DDR4 2133mhz
Motherboard: Asrock Z170 k6 Fatal1ty

 

[Lutfij]

Welcome to the forums, newcomer!

The stock cooler isn't exactly something people hold onto when they use an i7 processor(non-K or K suffix) since they aren't the best of coolers to have. You might want to look into a Vetroo V5 cooler as that's the cheapest cooler with regards to Amazon. Your prices may vary if you're located outside of the U.S.A.

When you swap boards, you're advised to reinstall the OS as well. You're just compounding your issues one after the other.

Make and model of your PSU and it's age? Make and model of your chassis and it's airflow orientation? Ambient room air temps?

 

[geofelt]

sounds like you have a cpu cooler issue.
The stock cooler can be tricky to install well.
In your first case, starting /idle at 70c. is an indication that you did not mount it well.
See my canned text on this at the end on how to mount the stock cooler.
It would seem that the second try was ok.

What I think is going on is thermal throttling.
When the cpu detects a dangerous temperature, it will slow down or even shut off to protect itself.
That point is around 100c.
If you start up Hwmonitor, you will see the current, minimum, and maximum cpu temperatures. Minimum should be near 40c. If you see a max of 100c. It means that you have throttled and the cpu will slow down until the situation is resolved.
Look at the speed of the cpu when your slowdown happens. It is likely lower than when you get good performance.
Really, you would do well to buy a decent tower type cooler with a 120mm fan if your case permits.

----------------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.
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