Minsc Posted June 10, 2005 Posted June 10, 2005 Idle is not a real process, like a real EXE program. It's a virtual process that represents all time that is not being used, or more accurately, that is not accounted for in other executable processes. However, the problem you're having is that drivers use CPU more directly, perhaps via the kernel or something, but neither task manager nor perfmon know what is doing it. The reason is because it's not a process (which usually end in EXE), it's a driver. Drivers end in .VXD or .DRV or other extensions. If you're on an AMD, you could try AMD CodeAnalyst Performance Analyzer (google it, yes it's free). It is a general system profiler to determine where time is being spent in programs, right down to which function inside of a DLL is using how much time. If that doesn't find it I don't know what will. Share this post Link to post Share on other sites More sharing options...
xl80325 Posted June 10, 2005 Posted June 10, 2005 I tried that sofware and here is the result in the attachment. Could you please tell me what's the problem in there if you know? Thank you very much. Share this post Link to post Share on other sites More sharing options...
xl80325 Posted June 10, 2005 Posted June 10, 2005 Anybody knows what read_register_ulong+6 is? It is in the ntkrnlpa.exe and it occupies most of the cpu time Another one is halprocessoridle+2 in hal.dll. Share this post Link to post Share on other sites More sharing options...
xl80325 Posted June 11, 2005 Posted June 11, 2005 Anybody knows if a possible motherboard problem may cause this? Share this post Link to post Share on other sites More sharing options...
tonedef42 Posted June 11, 2005 Posted June 11, 2005 it could be from a service running in the backround....try running in safe mode...(F8) then tell us if ur cpu is @ 70%...also disable all services. Share this post Link to post Share on other sites More sharing options...
malinois1 Posted June 11, 2005 Posted June 11, 2005 Anybody knows what read_register_ulong+6 is? It isin the ntkrnlpa.exe and it occupies most of the cpu time Another one is halprocessoridle+2 in hal.dll. Look at this search of thast exe http://search.yahoo.com/search?p=what+is+n...ggle=1&ei=UTF-8 Share this post Link to post Share on other sites More sharing options...
xl80325 Posted June 11, 2005 Posted June 11, 2005 I tried safe mode and there was no such problem. And then I used msconfig and select diagonostic boot up, which only load basic drivers and services, but there is still such problem. What's the differences between them? Share this post Link to post Share on other sites More sharing options...
xl80325 Posted June 11, 2005 Posted June 11, 2005 Look at this search of thast exe http://search.yahoo.com/search?p=what+is+n...ggle=1&ei=UTF-8 I think ntkrnlpa.exe is a windows kernal patch file and it can't be delected or something. Share this post Link to post Share on other sites More sharing options...
xl80325 Posted June 11, 2005 Posted June 11, 2005 Now some new discoveries. When I use safe mode, there is no such problem. But when I use safe mode with network, it comes out again. So maybe something wrong with the network? Who can tell me what should I do? Thanks Share this post Link to post Share on other sites More sharing options...
malinois1 Posted June 11, 2005 Posted June 11, 2005 Hmmm do you have Nvidia firewall installed? Share this post Link to post Share on other sites More sharing options...
xl80325 Posted June 11, 2005 Posted June 11, 2005 No, I've already uninstalled it Share this post Link to post Share on other sites More sharing options...
RGone Posted June 11, 2005 Posted June 11, 2005 Sometimes uninstall of NV firewall is not complete and total and requires windows be loaded again. RGone... Share this post Link to post Share on other sites More sharing options...
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