Re: Vista: high (45-50%) CPU usage due to hardware interrupts

I have a newly-purchased Dell laptop, running 64-bit Vista, with 4GB of
RAM. Right out of the box, I'm having the same problem as the original
poster, i.e., some time after startup, my CPU usage goes to about 40%,
even when idle. No processes show up as being responsible when using
the built-in task list, but running the downloadable Process Explorer
shows that all this CPU usage is due to hardware interrupts.

I also have tried turning off search/indexing, and any unnecessary
drivers (such as the facial recognition software that came
pre-installed). Although the original poster eventually concluded he
didn't have enough memory, I have plenty of memory, so that's not the
problem.

Dell support has been useless. Their reps are apparently trained that
high CPU usage can only be caused by spyware, and they can't handle the
idea that this problem happened out of the box, with only preinstalled
software, and they certainly don't understand the idea that it is caused
by hardware interrupts (they are only trained to use the task manager
tool built into Vista).

So I'm stumped, and very frustrated. How do I fix this?


--
puzzler
Posted via http://www.vistaheads.com

I have A Dell 1737 laptop. Had the same problem as puzzler. Un-installed
Facial recognition---problem solved. Seems the program continually
monitors the webcam. Not sure if this will help but it fixed me up.


--
Grinder
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Puzzler if you un install the fast access facial recognition it will stop. I
have a Dell Studio 1737 and it did the same.
"puzzler" wrote:

>
> I have a newly-purchased Dell laptop, running 64-bit Vista, with 4GB of
> RAM. Right out of the box, I'm having the same problem as the original
> poster, i.e., some time after startup, my CPU usage goes to about 40%,
> even when idle. No processes show up as being responsible when using
> the built-in task list, but running the downloadable Process Explorer
> shows that all this CPU usage is due to hardware interrupts.
>
> I also have tried turning off search/indexing, and any unnecessary
> drivers (such as the facial recognition software that came
> pre-installed). Although the original poster eventually concluded he
> didn't have enough memory, I have plenty of memory, so that's not the
> problem.
>
> Dell support has been useless. Their reps are apparently trained that
> high CPU usage can only be caused by spyware, and they can't handle the
> idea that this problem happened out of the box, with only preinstalled
> software, and they certainly don't understand the idea that it is caused
> by hardware interrupts (they are only trained to use the task manager
> tool built into Vista).
>
> So I'm stumped, and very frustrated. How do I fix this?
>
>
> --
> puzzler
> Posted via http://www.vistaheads.com
>
>