CPU Usage

[Guest]

I have P4 2.8 GHz Dell with a gig of memory running XP Pro SP1. Periodically, my CPU usage will hover between 70 - 90 % usage. As I write this post it is about 2%. I have a utlility called TaskInfo 2003 which show the 2 processes contributing to most of the usage.. One is DPC (Deferred Procedure Call) Time Placeholder and a process named System (Process ID is always 4). With this utility, I can see most of the CPU Usage is attributed to a certain thread. The questions I have are... how can I see what is causing the CPU to be so saturated at times? Can I tell to what the offending thread is pointing? Are there other utilities I can use to dig a little deeper?

By the way... rebooting does not clear up the problem when it is happening.

Anybody have any ideas?

 

[tarquinlinbin]

I have P4 2.8 GHz Dell with a gig of memory running XP Pro SP1. Periodically, my CPU usage will hover between 70 - 90 % usage. As I write this post it is about 2%. I have a utlility called TaskInfo 2003 which show the 2 processes contributing to most of the usage.. One is DPC (Deferred Procedure Call) Time Placeholder and a process named System (Process ID is always 4). With this utility, I can see most of the CPU Usage is attributed to a certain thread. The questions I have are... how can I see what is causing the CPU to be so saturated at times? Can I tell to what the offending thread is pointing? Are there other utilities I can use to dig a little deeper?

By the way... rebooting does not clear up the problem when it is happening.

Anybody have any ideas?

click start/run/services.msc and have a look in there. Watch/check for
Trojan activity,check firewall software if any for outbound connect
attempts which may be being blocked and thus taking up cpu useage
etc..

 

[Guest]

Wouldn't you know it... the problem has not returned (yet). Could a malware program disguise itself in a Deferred Procedure Call? What should I be looking for in the Services area?