CPU usage

  • Thread starter Thread starter Stefan Koschke
  • Start date Start date
S

Stefan Koschke

Hi, since a few days my cpu has always cpu load of about 90 % at core 2.
Vista is very slow.

Taskmanager shows no applications with cpu usage.

Now i installed process explorer and i can see that 45% cpu usage (this
is 90% of core 2) is for "System / hardware interrupts".
Which interrupts are the problem, what can i do to fix this?

Regards
Stefan
 
Stefan Koschke said:
Hi, since a few days my cpu has always cpu load of about 90 % at core 2.
Vista is very slow.

Taskmanager shows no applications with cpu usage.

Now i installed process explorer and i can see that 45% cpu usage (this is
90% of core 2) is for "System / hardware interrupts".
Which interrupts are the problem, what can i do to fix this?
Click to expand...


That very much sounds like a rootkit.

Try this:

http://technet.microsoft.com/en-us/sysinternals/bb897445.aspx

ss.
 
I've seen bad hardware or drivers cause those symptoms. Have you added any
new hardware or updated any drivers? You may get some clues if it's a driver
in this log.

Event Viewer
Applications and Services Logs
Microsoft
Windows
Diagnostics-Performance
Operational
 
Stefan Koschke said:
Hi, since a few days my cpu has always cpu load of about 90 % at core 2.
Vista is very slow.

Taskmanager shows no applications with cpu usage.

Now i installed process explorer and i can see that 45% cpu usage (this is
90% of core 2) is for "System / hardware interrupts".
Which interrupts are the problem, what can i do to fix this?

Regards
Stefan
Click to expand...



Run the Manufacturers diagnostic program on your hard disk.

Go to the website of the manufacturer of your hard disk.
Download their Diagnostic Program.
Run it.
 
Colon said:
Run the Manufacturers diagnostic program on your hard disk.

Go to the website of the manufacturer of your hard disk.
Download their Diagnostic Program.
Run it.
Click to expand...

Hi,

thanks, but Samsung tool tells both drives have no errors :-(

Now i have to look at other points...

Ciao
Stefan
 
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