Solved sudden high cpu usage 90-100%

March 27, 2017 at 19:50:32
Specs: Windows 10
up until 25/03/2017 i have been able to play games with 20-30% cpu usage though now when i try to play cpu usage is 80-100% and causes the game to be jittery/laggy it also causes my computer to crash, even sitting in the menu screen with the game minimised it uses 94% of the cpu. i have an i7 6700 with a kingston 16GB kit.

message edited by BlackTaka2


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✔ Best Answer
April 1, 2017 at 05:35:58
Your 12Volt reading is fine in your BIOS at idle and it is a quality power supply. Your temps are good. Your internal GPU is 0.000 I assume because it is disabled due to your graphics card being your primary graphics. I do not see any special reason for the crashing but it does appear to be hardware related. Here are a few things that MIGHT make a difference:
(computer off and unplugged, ground yourself of any possible static charge)
Clean the contacts on the memory with a soft pencil eraser, then pop them in and out of the sockets 4 or 5 times to burnish the sockets.
Remove and reseat all connectors 2 or 3 times each including the modular ones on the power supply to rub them clean.
Run Memtest86 to test memory, run through all tests at least once.
Run your SSD management software to be sure it shows no issues.
You can run it for a while in Safe Mode or off a Live Linux disk (not install) to see if you get the crash which may confirm it is hardware related.

Software related:
Run Task Manager and under the Processes Tab identify the program or process that is using a lot of CPU. If you are not sure what it is, Google it. If it is not yours, not a necessary part of the system, you may want to uninstall it. If it is a program that you use but not continuously, go into its settings and uncheck "Start With Windows", restart the machine and see if it makes any difference. You can also run CCleaner and use its Start Up feature to manage your start up programs. Please note that running the CPU at 100% for a reason is not bad and should not cause a crash unless it overheats or becomes starved for current.

CPU current related (Increasing the voltage slightly will lessen demand for current):
If the CPU is reaching a state that is unstable under full load then it may help if you manually increase the VCore voltage by a very small amount (0.01 or 0.02) and see if it makes any difference. Here is something that may help you be more comfortable adjusting your VCore (CPU voltage):
http://www.tomshardware.com/answers...
Check Temps after adjusting voltage but a small increase should not effect it significantly.

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

message edited by Fingers



#1
March 27, 2017 at 20:54:30
Without game active check in Task Manager to see what program or process is using the most CPU when all should be at idle. If it is a program you do not use and/or did not install (use Google to be sure it is not important), uninstall it. Use other program's settings to make sure they do not start with Windows but only when you want them launched.

Then run these:
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.

Junkware Removal Tool (JRT)
https://www.malwarebytes.org/junkwa...
(blue Download button).
Download and "Save" the file somewhere. Go to the saved file then double click it to run JRT. It might appear to have stopped at times or flash the screen but sit tight until it has finished.

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 log(s) on here. The ADW log is a text file in the ADWCleaner folder directly off the system drive root (usually C).

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


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#2
March 30, 2017 at 09:15:40
so update i have done maleware tests nothing has come up, i have done a uninstall of nvidia drivers and done a clean install and i still have problems with high cpu usage and computer crashing not a blue sceen crash but monitor goes full one colour and if there is noise at the time of crash it will turn into a high pitch single tone noise, i have tried leaving it for an hour and no change can be seen. i go into event viewer and i can't find anything in the system logs that would cause the crash, i have errors but they have been around from the start before this started i go into reliability checker and it doesn't give any info on why the computer crashed only said that windows did not shut down correctly (due to having to turn the power off)

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#3
March 30, 2017 at 19:16:28
It is beginning to sound like your power supply is either just about or nearly enough to power your system or is beginning to fail. Please list your complete system specs, especially graphics card and exact make and model number of your power supply (OR at least all wattage AND amperage numbers (list per voltage rail) from the label on the power supply.

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


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Related Solutions

#4
March 30, 2017 at 19:21:44
Then install HWMonitor and give us all temperatures and board voltages (3.3V, 5V, 12V, etc.)

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


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#5
March 31, 2017 at 05:34:33
Sounds like your computer is overheating and the CPU is throttling back to protect itself.

Try blowing out the entire case including the power supply from both ends. Use an air compressor, or canned air from a office supply. This will be messy so I would advise to to take the case outside.

DO NOT dismantle anything at this time.

HWMonitor is a good idea but if you haven't cleaned internally for a while, or ever, do that ASAP.

message edited by OtheHill


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#6
March 31, 2017 at 14:21:37
so i did a clean of my computer wasn't bad at all a tiny bit of dust on a couple of fans but the problem is still there. the computer crashed at roughly 54-60degrees celsius on graphics card and there was next to no change in temp of the cpu at 34 max.

cpu vscore- max 1.272V
VIN1 - max 1.000V
+3.3V - max 3.408V
+5V - max 4.944V
+12V - max 6.970V
VIN5 - max 0.152V
VIN6 - max 0.952V
temp - max 34 Celsius
samsung SSD 850 evo 250GB
air flow max - 37 Celsius
nvidia geforce gtx 980 Ti
vino - max 1.030V
TMPINO - max 52 clesius


MSI Z170A Gaming M7 LGA1151 DDR4 ATX Motherboard
Intel Core i7 6700K Skylake-S 4.0GHz 8MB Cache
Gigabyte GeForce GTX980Ti G1 Gaming 6GB GDDR5
Kingston 16GB Kit (2x8GB) DDR4 HyperX Fury Black C14 2133MHz
Samsung 850 EVO Series 2.5" 7mm 250GB SSD
Corsair AX1200i 1200W 80PLUS Platinum Modular Power Supply


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#7
March 31, 2017 at 15:12:06
don't think it's an over heating problem as the cpu doesn't go above 35 and the highest my graphics card i have seen is 65 even when running multible games before my computer crashed again

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#8
March 31, 2017 at 15:39:36
Either your motherboard sensor is not being read correctly by HWMonitor or you have a problem with the +12V rail in your power supply. All voltages should be within +- 5% of stated value. Your +12V is reading 6.970V.

Boot into the BIOS screens and check that voltage value.


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#9
April 1, 2017 at 01:01:04
Cpu core 1.240
cpu i/o 0.944
cpu SA 1.056
system/ 5V 5.000
system 12V 11.904
internal gpu 0.000
DRAM1.2
çpu temp 48
system temp 42
from bios
room temp 34-39
should the internal gpu be at 0?

message edited by BlackTaka2


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#10
April 1, 2017 at 05:29:18
Do you have an integrated Graphics chip?

Try running a memory test like memtest86.

You could also try re-seating all your RAM sticks. Snap each one in and out 4 or 5 times to burnish the contacts.

Look in Programs and features to see what new updates may have caused this issue. Especially something to do with graphics.

Do the same symptoms occur when using the computer for other tasks besides gaming? It is just one game?

message edited by OtheHill


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#11
April 1, 2017 at 05:35:58
✔ Best Answer
Your 12Volt reading is fine in your BIOS at idle and it is a quality power supply. Your temps are good. Your internal GPU is 0.000 I assume because it is disabled due to your graphics card being your primary graphics. I do not see any special reason for the crashing but it does appear to be hardware related. Here are a few things that MIGHT make a difference:
(computer off and unplugged, ground yourself of any possible static charge)
Clean the contacts on the memory with a soft pencil eraser, then pop them in and out of the sockets 4 or 5 times to burnish the sockets.
Remove and reseat all connectors 2 or 3 times each including the modular ones on the power supply to rub them clean.
Run Memtest86 to test memory, run through all tests at least once.
Run your SSD management software to be sure it shows no issues.
You can run it for a while in Safe Mode or off a Live Linux disk (not install) to see if you get the crash which may confirm it is hardware related.

Software related:
Run Task Manager and under the Processes Tab identify the program or process that is using a lot of CPU. If you are not sure what it is, Google it. If it is not yours, not a necessary part of the system, you may want to uninstall it. If it is a program that you use but not continuously, go into its settings and uncheck "Start With Windows", restart the machine and see if it makes any difference. You can also run CCleaner and use its Start Up feature to manage your start up programs. Please note that running the CPU at 100% for a reason is not bad and should not cause a crash unless it overheats or becomes starved for current.

CPU current related (Increasing the voltage slightly will lessen demand for current):
If the CPU is reaching a state that is unstable under full load then it may help if you manually increase the VCore voltage by a very small amount (0.01 or 0.02) and see if it makes any difference. Here is something that may help you be more comfortable adjusting your VCore (CPU voltage):
http://www.tomshardware.com/answers...
Check Temps after adjusting voltage but a small increase should not effect it significantly.

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

message edited by Fingers


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