Why has my CPU usage suddenly increased during games?

May 18, 2017 at 11:36:33
Specs: Windows 10
My CPU usage has suddenly increased during games. I have seen a consistent FPS drop of around 25 per cent.

Previously my GPU (GTX 1070) was as far I can tell the bottleneck during gaming. For example whilst playing Battlefield 1 my GPU usage would sit at near 100 per cent whilst my CPU (6600k) usage would be somewhere around 60 to 70 per cent. FPS would rarely drop below 80, which is in line I have seen other people getting with a similar CPU/GPU set up.

Now all of sudden my FPS is dropping below 60 fairly regularly. My GPU usage has dropped to around the 60 to 70 per cent mark, whilst CPU usage has shot up to near 100 per cent. This doesn't appear to be down to background processes but the game itself. I have had a similar problem in other games.

When I go into device manager or my BIOS both appear to indicate the CPU is working fine, and I don't think it is the CPU being throttled due to high temperatures as I haven't seen it go any higher than about 63c.

I think I remember Windows doing an update when I shut my computer down the last time before this happened so I wonder whether it is something to do with this.

Please help - I have searched around forums but can't seem to find any solutions.

message edited by tomkido1604


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#1
May 18, 2017 at 12:54:50
Have you done a Restart (rather than a shut down and startup) because on Win 10 this clears up your settings? Another thing to try is discharging the motherboard components, like this:
Turn off computer, remove power cord, hold Power Off/On button down for at least 20 seconds.

You could also run these two in the order given just to make sure there's no malware about (they often find what AVs miss):

AdwCleaner:
https://toolslib.net/downloads/view...
(blue "Download Now" button on right).
Download and "Save" the file somewhere. Go to the saved file then double click it to run the program. Use the "Scan" button, followed by the "Clean" button.

MalwareBytes:
https://www.malwarebytes.org/
(use the "Free Download" button rather than the "Buy Now" button).
After the install go to "Settings > Protection". Under Scan Options move the "Scan for rootkits" slider over to On and Run the Threat Scan. Quarantine anything it finds.

If anything is found please copy/paste the associated logs on here.

Always pop back and let us know the outcome - thanks


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#2
May 18, 2017 at 14:18:29
Restart didn't do anything.

AdwCleaner found nothing.

MalwareBytes found a couple of items -

Here's the report:

-Software Information-
Version: 3.1.2.1733
Components Version: 1.0.122
Update Package Version: 1.0.1969
License: Trial

-System Information-
OS: Windows 10
CPU: x64
File System: NTFS
User: DESKTOP-J6JAJ5V\Thomas

-Scan Summary-
Scan Type: Threat Scan
Result: Completed
Objects Scanned: 390049
Threats Detected: 2
Threats Quarantined: 2
Time Elapsed: 3 min, 27 sec

-Scan Options-
Memory: Enabled
Startup: Enabled
Filesystem: Enabled
Archives: Enabled
Rootkits: Enabled
Heuristics: Enabled
PUP: Enabled
PUM: Enabled

-Scan Details-
Process: 0
(No malicious items detected)

Module: 0
(No malicious items detected)

Registry Key: 0
(No malicious items detected)

Registry Value: 0
(No malicious items detected)

Registry Data: 0
(No malicious items detected)

Data Stream: 0
(No malicious items detected)

Folder: 0
(No malicious items detected)

File: 2
PUP.Optional.Spigot, C:\USERS\THOMAS\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\DEFAULT\LOCAL STORAGE\http_weatherforecastalerts.com_0.localstorage, Quarantined, [633], [376102],1.0.1969
PUP.Optional.Spigot, C:\USERS\THOMAS\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\DEFAULT\LOCAL STORAGE\http_weatherforecastalerts.com_0.localstorage-journal, Quarantined, [633], [376102],1.0.1969

Physical Sector: 0
(No malicious items detected)


(end)

No change at all to game performance.

message edited by tomkido1604


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#3
May 18, 2017 at 16:26:14
I would most likely say this is all because of your update. A friend downloaded a game for me in windows 7 (because it costs money) and I run it in windows 10. My CPU usage was crazy high (higher than it had ever been) and not only the rest of the apps didn't respond, but my os didn't respond well. My mouse was slow, no buttons worked, and much more. When I shut the game down, CPU was decreased by 70 percent and everything worked normally again. Just reinstall the game in your current os version and it should work fine.

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Related Solutions

#4
May 18, 2017 at 16:31:07
TechGuy could well be right, cumulative and features updates in particular . MalwareBytes didn't find anything much.

Always pop back and let us know the outcome - thanks


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#5
May 19, 2017 at 12:32:26
Sigh... That's going to take a while (I will have to re-download about 50GB) but I'll give it a whirl. I did a benchmark of my CPU on Cinebench and it scored 600cb which seems in line with what other people were getting so it doesn't seem to be a problem with the CPU itself. Thanks for the suggestions to far.

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#6
May 20, 2017 at 04:22:39
Reloaded the Battlefield 1 and no change. CPU still maxed out and getting low FPS. The problem happens across all games as well. Any more suggestions?

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#7
May 20, 2017 at 05:20:18
You may have been the recipient of a driver update or an update effecting your built in graphics which is now interfering with your graphics card. Manually download the most current graphics driver from NVidia directly and the NVidia GPU performance control panel and install them and see if they help things for you.

You have to be a little bit crazy to keep you from going insane.


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#8
May 20, 2017 at 05:51:26
Already did that. Also went into the Nvidia control panel and made sure that PhysX was being run from my GPU.

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#9
May 20, 2017 at 07:29:42
Does anyone think at this point it may be worth reinstalling Windows?

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#10
May 20, 2017 at 08:24:41
What motherboard are you using? Is the BIOS tweaked for best performance? Are the i5 graphics disabled? Did you install the latest motherboard chipset drivers?

Also, it appears high CPU usage in BF1 is "normal", especially with an i5.

http://windowsreport.com/battlefiel...

http://www.tomshardware.com/answers...

http://www.tomshardware.com/answers...

https://www.reddit.com/r/Battlefiel...

message edited by riider


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#11
May 20, 2017 at 08:56:19
I know it's not just to do with Battlefield 1 being CPU intensive because it used to work fine. Before this problem occurred I was getting significantly higher frame rates.The previous performance matched what I have seen other people getting with pretty much exactly the same setup. This is also a problem across all the games I have been playing not just battlefield. Something has happened. It's not just the limits of my hardware setup.

My motherboard is a gigabyte H110M (not sure what the exact version is). I will try updating the BIOS drivers.

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#12
May 20, 2017 at 09:05:33
Having looked at some more benchmark videos on youtube I might have had a poor recollection of how low the GPU usage was previously and also how high the CPU usage was as well. It seems it probably was the CPU bottlenecking. Apologies. I don't regularly have the stats up on screen other than fps when playing (although I did do when I first started playing to get an idea of how well my setup was working). I think some of the initial benchmarks I used to confirm my recollections might have been running at higher resolutions, hence the higher GPU usage.

However, it is still the case that I am getting much lower performance than I was previously. It used to be that FPS was consistently above 80fps and quite often over 100fps. This matches with several benchmark videos I have just watched. Now my PC struggles to maintain even 60 fps. During intense moments it is dropping down to just 40 fps.

Here is an example of someone playing with a very similar setup to me and getting the same fps as I did previously - https://www.youtube.com/watch?v=DJ6...

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#13
May 20, 2017 at 14:38:32
"My motherboard is a gigabyte H110M (not sure what the exact version is). I will try updating the BIOS drivers"

A board based on the H110 chipset was a poor choice for a gaming rig. It certainly wouldn't hurt to update the BIOS, but I doubt it's necessary or will make a difference. I think the H110 is the bottleneck. The PCIe 3.0 graphics slot is actually PCIe 2.0 & the chipset only has 6 PCI-E 2.0 Lanes.

From Tom's Hardware:

"At the low-end of the 100 series spectrum is the other H series chipset, the H110, which is further stripped down from the Z170. It lacks support for RST, Smart Response Technology, Smart Sound Technology, Small Business Advantage 4.0, RAID, overclocking, and multi-GPU configurations. It also loses more than half the USB 3.0 support of the Z170 chipset. The number of HSIO lanes available falls sharply, and their use is limited. Memory support is reduced as well, as only a single DIMM is permitted in each channel. Finally, the H110 is also the only chipset to lack PCI-E 3.0 support; instead it uses eight lanes of the older PCI-E 2.0 standard.

The H110 chipset doesn't offer much, but it still supports the Skylake CPU, DDR4 and a PCI-E 3.0 connection for a GPU. The H110 chipset will likely be used on the cheapest LGA 1151 motherboards, however, which will make it easier for consumers to upgrade to Skylake without needing to pay out quite as much."

http://www.tomshardware.com/news/in...

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#14
May 20, 2017 at 15:18:28
What hardware I have is kind of irrelevant because the problem I'm trying to resolve is a drop in performance compared to what I achieved previously with exactly the same hardware. I was regularly getting 80fps plus in battlefield and now it is down to 60fps and lower. I think I may have found the culprit though - Nvidia's shadowplay feature turned itself on. I found a number of people on forums who said it was really curbing their performance. Just waiting for battlefield finish downloading so I can check.

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#15
May 20, 2017 at 16:55:16
"What hardware I have is kind of irrelevant"

OK, I'm done here. Good luck.


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#16
May 21, 2017 at 04:42:20
Surely what hardware I have is irrelevant if I am talking about a drop in performance compared to what I was getting previously with the SAME hardware. The problems you described with my motherboard would have been there before. The problem I was describing was an overnight drop in performance. One day I turned on my PC and it was performing noticeable worse than before. I am not saying hardware is irrelevant to all discussions of performance. It's just irrelevant to this particular discussion.

I mean this seems like a basic matter of logic. It would apply to something like a car as well.

This is the equivalent of me saying my Ford Focus did have a top speed on of say 110MPH and it was running smoothly. Now it can only get up to 90MPH and its juddering all the time. I think something has broken and need fixing. And your response is, well the problem is it's not a Ferrari.

By the way, I found the problem. Nvidia's instantly replay feature had turned itself on. My FPS is now back up to where it was before.

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#17
May 21, 2017 at 16:09:30
Good to hear it resolved. Thanks letting us know, maybe someone else can benefit from the results.

You have to be a little bit crazy to keep you from going insane.


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