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Old 20. Jun 2014, 02:11 PM   #1 (permalink)
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Default System Idle Process and CPU usage

Hi,

My laptop was fried by lighting a few weeks ago so i bought a refurbished one and had an SSD installed with Windows 7 64bit.

Other than the fact that Microsoft Security Essentials was a pain in the ... (the lab thought good to install it for me) chewing up CPU (and other issues. Needless to say i removed it.

Now, System Idle Process comes up once in a while and chews almost 100% CPU!
Have SpeedFan installed (automatic mode) but that didn't solve the issue.
Not good at tweaking the clock so i don't touch it.
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Old 20. Jun 2014, 03:39 PM   #2 (permalink)
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This could be related to quite a few things but one issue that I'm aware of (which could explain the random nature) is the system auto update. Try setting this to: "check for updates but let me choose whether to upload and install them" to see if this cures it.

I would also scan your laptop with a good quality resident antivirus and also an online scanner as it may well have been infected when you bought it.

If neither of the above work, you should try Googling for other possibilities or take it back to the supplier.
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Old 20. Jun 2014, 06:11 PM   #3 (permalink)
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Thanks!

Have also set screen resolution rate to 60Mhz instead of 75.
So far so good!

Btw, it had been at least 3 days before the System Idle Process started to act up, so i don't think it was the installation.

Guess i'll install Panda Cloud AV - always been nice to me (even with recent annoying popup). AVAST would be my next free option.
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Old 20. Jun 2014, 08:09 PM   #4 (permalink)
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it might be a windows update? I've had that in the past where there was a bug, later on they put out a fix for it.
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Old 20. Jun 2014, 10:13 PM   #5 (permalink)
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Uh guys? If it was the real System Idle Process, then that's how it's supposed to be.
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Old 21. Jun 2014, 03:17 AM   #6 (permalink)
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Quote:
Originally Posted by J_L View Post
Uh guys? If it was the real System Idle Process, then that's how it's supposed to be.
I appreciate folks can get confused with this reading but had assumed the OP had actually checked that this was in fact CPU being "used" which at the time would be evident by the performance (or not) of other programs.
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Old 21. Jun 2014, 01:30 PM   #7 (permalink)
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My previous laptop was an LG.
Used it for 4 years (sniff) and never had System Idle Process issues.
This refurbished HP EliteBook 8460p has apparently the reputation for being noisy.
But there's noisy and noisy!
Removing Microsoft Security Essentials was a big plus (had seen cpu issues on other computers with it).
Setting monitor refresh rate to 60Mhz was another plus.

Yesterday, had installed LXLE 14.04 and you had to know the laptop was even on!
Unfortunately, like with most Linux distros, a few peripherals didn't work.

BTW, what does OP stand for? Dominican Fathers?
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Old 21. Jun 2014, 02:00 PM   #8 (permalink)
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Quote:
Originally Posted by danielson View Post
My previous laptop was an LG.
Used it for 4 years (sniff) and never had System Idle Process issues.
...
Removing Microsoft Security Essentials was a big plus (had seen cpu issues on other computers with it).
...
BTW, what does OP stand for? Dominican Fathers?
OP = "original poster" in this case but is also used for "original post"

System Idle Process is not an issue as J_L indicated. Here's a relevant paragraph from Wikipedia:
Quote:
Because of the idle process's function, its CPU time measurement (visible through Windows Task Manager) may make it appear to users that the idle process is monopolizing the CPU. However, the idle process does not use up computer resources (even when stated to be running at a high percent), but is actually a simple measure of how much CPU time is free to be utilized. If no ordinary thread is able to run on a free CPU, only then does the scheduler select that CPU's System Idle Process thread for execution. The idle process, in other words, is merely acting as a sort of placeholder during "free time".
Also, Microsoft Security Essentials (MSE) has traditionally used less CPU cycles than most other anti-virus programs.
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Last edited by Remah; 21. Jun 2014 at 02:01 PM. Reason: More specific about MSE
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Old 21. Jun 2014, 06:28 PM   #9 (permalink)
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Wikipedia article might be true (not to believe everything posted on that site).
For all i know, when System Idle Process goes on with this CPU usage on my laptop. the fan going off is the whistle horn that lets me know it is. So, why is that on my HP and not on my old LG?

AFAIK, not a single AV program fits the bill for every computer.
AVG used to be my fav but after version 7, i gave up on it.
It just pulled my computer down the drain...
Microsoft might be lowest in CPU cycles usage but it sure chokes up CPU usage on more than one computer. Speaking of Microsoft software programs... naw, not worth spending time to rant about them.
Another thing MSE does on my laptops, it slows the computers down.
Scrolling through files is so sluggish!

Last edited by danielson; 21. Jun 2014 at 06:31 PM. Reason: extra note
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Old 21. Jun 2014, 08:57 PM   #10 (permalink)
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Apparently, temperature problems have been common with your model of laptop causing the CPU to be throttled back resulting in sluggish performance.

Some solutions are listed in HP Notebook PCs - Fan Runs Constantly, the PC Operates Slower than Expected and Generates Heat

You can also use a program to monitor the temperatures of the processors (CPU and GPU) to see if it is temperature causing the fan to get noiser. There are many system monitoring tools that will tell you the temperature including SpeedFan which you've already installed.

Sometimes the source of fan noise problems is having old, faulty or incorrect chipset drivers installed. This Review of the HP EliteBook 8460p Notebook found a similar problem - read under "Throttling During GPU Stress":
Quote:
Note: While testing our sample laptop, we repeatedly observed a reduction in clock rates (CPU+GPU, GPU-Solo) due to an overly high GPU temperature. The update to the Catalyst 8.821.1.0 has since resolved the issue.
You can update the drivers at Drivers, Software & Firmware for HP EliteBook 8460p Notebook PC
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