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| Performance and Maintainance of Windows Vista A forum for performance and maintenance tasks in Windows Vista. (microsoft.public.windows.vista.performance_maintainance) |
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September 19th 08, 03:33 PM
posted to microsoft.public.windows.vista.performance_maintenance
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acpi.sys cpu utilization
I have a 3GHz dual core with 8GB of ram on Vista 64 bit and the "system"
process, that normally should only be a couple of percent, is always around 47%, regardless of what I do to the system (one of the cores is always at 95-100%). Using process explorer it's showing that it is the acpi.sys process and I'm unable to do anything to that thread. The actual start address within process explorer is "acpi.sys!DeRegisterOpRegionHandler+0x48cc". I have tried to disable all power aspects of the pc from within the bios (full disable and change from ACPI capable to standard mode), this causes Vista too not boot...trying to change the PC type from within vista to a standard pc is not accepted by the OS. Any thoughts? I'm dreading a re-install from scratch. 
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February 17th 09, 03:35 PM
posted to microsoft.public.windows.vista.performance_maintenance
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acpi.sys cpu utilization
I have the exact same problem on a Dell Inspiron 530 with Vista Home Prem SP1. Did you ever get this solved? I have been able to determine that it occurs coming out of sleep mode. satch;1000530 Wrote: I have a 3GHz dual core with 8GB of ram on Vista 64 bit and the "system" process, that normally should only be a couple of percent, is always around 47%, regardless of what I do to the system (one of the cores is always at 95-100%). Using process explorer it's showing that it is the acpi.sys process and I'm unable to do anything to that thread. The actual start address within process explorer is "acpi.sys!DeRegisterOpRegionHandler+0x48cc". I have tried to disable all power aspects of the pc from within the bios (full disable and change from ACPI capable to standard mode), this causes Vista too not boot...trying to change the PC type from within vista to a standard pc is not accepted by the OS. Any thoughts? I'm dreading a re-install from scratch. -- dad1956 Posted via http://www.vistaheads.com
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