i5-6600k 100% CPU usage in nearly every game

[Amber_8]

Ok, im so sick of this problem.
I've read so many threads stating this should not be the case for the i5-6600k.
I play games usually at 144fps and whenever the CPU peaks at 100% every game just stutters so much. Im talking mouse stuttering where I cant turn the camera in the game making it unplayable.
Why cant my mouse move during these instances of high CPU usage, how can I fix this???

I can tell you right now that I have already tried multiple things with no avail. Though any suggestions would really help as I want to narrow this down and fix this problem.

My System Specs are:
CPU: Intel i5-6600k
GPU: Zotac Geforce GTX 1070
RAM: G Skill DDR4 8gb x2
MB: MSI Z170A Gaming M5
PSU: EVGA Supernova 850 B2 850W 80+ Bronze
SSD 1: Samsung 850 Evo 256gb
SSD 2: Adata SU800 256gb
HDD: Western Digital Blue 1tb
CPU cooler: Cooler Master Hyper 212 Evo
CASE: something I found at a resell store

If any more information is necessary then I can provide a Dxdiag.txt

 

[Amber_8]

which games give you these stutters? BF1? So does my 6600K and perhaps a bit in PUBG as well... regret not getting an I 7 🙁

I've had this problem in The Division, Overwatch, Lawbreakers, and a few others. Basically whenever the game uses 100% of the CPU the problem occurs.
I too regret not getting an i7 as I've tested these games with an i7 using very similar hardware (same GPU and everything else just the CPU being different pretty much) and havn't gotten those obnoxious stutters but instead just the usual framedrops.

I cant emphasize this enough but the this is worse then just typical framedrops!

Are you running Windows 7, and are you using Samsungs "Rapid Mode" ? If so, try turning that memory cache program off...

No I am running 10 and I dont really know much about rapid mode. What would that do?

 

[KirbysHammer]

which games give you these stutters? BF1? So does my 6600K and perhaps a bit in PUBG as well... regret not getting an I 7 🙁

I've had this problem in The Division, Overwatch, Lawbreakers, and a few others. Basically whenever the game uses 100% of the CPU the problem occurs.
I too regret not getting an i7 as I've tested these games with an i7 using very similar hardware (same GPU and everything else just the CPU being different pretty much) and havn't gotten those obnoxious stutters but instead just the usual framedrops.

I cant emphasize this enough but the this is worse then just typical framedrops!

Are you running Windows 7, and are you using Samsungs "Rapid Mode" ? If so, try turning that memory cache program off...

No I am running 10 and I dont really know much about rapid mode. What would that do?

Where have you been the last 40 days OP?

 

[mdd1963]

Then that may be your main problem.

You see, when the CPU is pegged at 100% the OS has to make decisions on where to put CPU horsepower.

When you tell it your game is of utmost importance, it will give the CPU cycles to your game, which will cause stuttering with your CPU-cycle starved mouse.

Well I dont usually have the game on high priority, I would rather not have to change the priority every time I open a game or download a program to do that for me. Also I have tried playing the same games on low priority and while its more functional it still really doesnt help and continues to be a problem if not nearly as frequently as normal priority.
Is there any reason this only happens on this particular computer I own?
Playing on say my friends computer does not have stuttering but instead just the typical framedrops.

Try turning off every last resource-hogging unnecessary task running in task manager, beginning with whatever AV you are using. (Some are notoriously worse than others) Turn off OneDrive, GoogleDrive, DropBox, everything superfluous.... ANd for Pete's sake...no streaming with an i5. Does you monitor work with lower refresh rates available, such as 100/72/60 Hz refresh with Vsync? Try that so the CPU is not overwhelmed trying to handle everything the GPU throws at it...

 

[Amber_8]

Sorry about my delay in response.
Ive running stress tests lately and have noticed a trend that causes this "stuttering". Only in stress tests that handle the GPU and CPU, like some 3D mark tests for instance, cause the weird mouse stuttering.
Running CPU specific stress tests to max its usage doesnt cause this stuttering alone. Does this mean its something to do with the MOBO or possibly the slot the GPU is in or CPU is in?
The reason I don't believe its directly the GPU is because Ive had this same problem with other GPUs that I switched to other systems that dont have the problem occur on them.

Also to follow up on mdd1963's post, Ive tried re-installing windows with nothing resource hogging and just a game itself to try and narrow it down to be a possible software issue. Now running lower refresh rates mitigates it but still i get like a diminishing returns in acquiring less CPU usage the lower refresh rate I go. Bear in mind this happened with a GTX 760 and a GTX 1070 so i dont think its what the GPU is throwing at the CPU that cant handle it.
So with all of this in mind I plan on trying different PCI slots and if that doesnt work Ill switch motherboard and if that doesn't work then im going to say its the CPU i have specifically.

Hopefully this will actually be a solution lol.
Thanks for everyones suggestions too.

 

[Amber_8]

So I can narrow down the problem after stress testing my CPU and GPU in different benchmarks.
While running 3Dmark's time spy benchmark I only get the stuttering during the CPU test oddly when reaching 100% usage.
This is strange because I don't get the same results where the mouse becomes unresponsive and stutters in other benchmarks that don't include the GPU, such as Prime95 and Novabench.
So this means the problem can be narrowed down to an issue when stuff is being rendered and the CPU is at full load. If anyone can give a reason this would be the only case then that would be great.
I already tried switching PCI slots of my GPU and removing my extra card to switch the lane to x16 instead of x8 speeds but the problem persisted.

 

[mdd1963]

Is there no way to cap/successfully sync your monitor at a lower peak refresh rate of either 60/100 Hz so that the CPU does not reach 100%? Setting graphics to max details/quality might shift some burden to the GPU as well....

 

[Amber_8]

I have a 144Hz monitor that I can adjust its refresh rate. But wouldnt the monitor's refresh rate not affect the CPU if it is above 60fps or near the monitors refresh rate?
Also what graphics settings affect the CPU in a big way?
However despite all of this maybe mitigating the problem, its not a solution as many previous computers I owned and friends owned have taken the same bench marks using similar hardware and dont have the same results as my computer specifically with the mouse just dropping input. So this is not normal and I havnt always had this problem with this computer too.