High CPU spikes at IDLE

mrclownface · Mar 10, 2014

Hi there,
i have a problem with my cpu having spikes and seems to be running harder than normal at idle,now it is at 25% with only google chrome and steam open,a few weeks ago i found it was running higher at 50%-90% spikes at idle,causing some freezing, i could not find the problem so i reinstalled windows 7 and this seem to fix the problem,
the idle went back to approx 5%-15% with no spikes,but a few weeks after it seems to be higher again also with spikes and increased temps at idle,what is a normal idle % for this CPU?,i will add the specs of my system below,any help is much appreciated.

core I5 2500k(no overclock)
asrock p67 pro motherboard
coolermaster hyper 212 plus
gainward gtx 560ti
antec truepower 650 psu
4 gig gskill ram
CM storm case(plenty of airflow)

photonboy · Mar 10, 2014

Open Task Manager-> Processes and see what program is using the CPU cycles.

TM opens with CTRL-ALT-DEL..

I also recommend running a full pass on your System RAM using memtest www.memtest.org

mrclownface · Mar 10, 2014

photonboy :

i have the task manager open,under the processes tab,then i click on the cpu tab,i ticked the box that says(show processes from all users)
system Idle Process is 74
ASCService,exe*32 is 25
all other processes seem to be= 00
is this good,? the cpu is at 25% now at idle,is this normal for a cpu of this type,
i will follow your link now,thanks

madsmagnus · Mar 10, 2014

If you don't have your CPU actively doing anything then idle shouldnt really budge much over 0%..

Try updating your BIOS

mrclownface · Mar 10, 2014

madsmagnus :

up to this point i have had no issues witht the bios,im really curious to know what is causing this,this system has been fine for approx 2 years,then recently this problem started randomly

madsmagnus · Mar 11, 2014

This may be a long shot, but at this point I don't think you have many options.. You are using 1 ram block right? Can you borrow someone elses any try theirs ?

mrclownface · Mar 11, 2014

madsmagnus :

i am using 2 sticks of 2gig each,i cant borrow any ram really,its strange yesterday the cpu was back to mormal idle at 5-10% again.but today the idle is at 25-30% again,i suspect you are right and it may be a hardware issue,i will try to test the ram today.
thanks

mrclownface · Mar 11, 2014

I ran (memtest86) completed the test with no errors,not sure what to test now and how to resolve this issue

madsmagnus · Mar 12, 2014

You tested both blocks individually right ?

mrclownface · Mar 12, 2014

i thnink memtest86 automatically tests both,should i remove 1 stick and run the test

madsmagnus · Mar 12, 2014

I'm not so familiar with memtest tbh. But it prob wouldn't hurt to try doing one by one.

mrclownface · Mar 13, 2014

after looking at this problem for quite a while,i found the cause,i am using software called advanced system care,it has a component called process manager,it basically a good task manager,while looking at the cpu usage with this,i found another component of it was using 25% cpu,it was (advanced system care service)so as soon as i shut it down,the cpu was back to normal idle at 2-5%,
thanks to anyone who has replied to this thread,your assistance is always appreciated.

mrclownface..!!

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