Hello,
I recently reloaded the operating system on my all purpose server PC but I'm having a serious issue. I installed Windows 7 64 bit on an ASRock ALiveNF6G-VSTA (nVIDIA nForce 6100-430) motherboard. The CPU is an old Phenom 9850BE with 4GB of ram and using the onboard video. After the OS was installed, the CPU usage is very high on idle.
Process Explorer shows that the high cpu usage is used by DPCs, System and SMSS. See here:
I used the xfperf tool from the Microsoft Performance Toolkit to find out what exactly is causing this. It found that its being caused by a few driver/system files: ACPI.sys being the mail culprit. This leads me to believe that it could be a driver issue. I started with the default drivers that the OS installed then tried the drivers on the ASRock website (they said Vista 64bit, not Win7) but they didn't make a difference. I also installed the the latest nforce drivers (15.49) with no change. I'm at a loss on how to troubleshoot this.
Screenshots here and here
I recently reloaded the operating system on my all purpose server PC but I'm having a serious issue. I installed Windows 7 64 bit on an ASRock ALiveNF6G-VSTA (nVIDIA nForce 6100-430) motherboard. The CPU is an old Phenom 9850BE with 4GB of ram and using the onboard video. After the OS was installed, the CPU usage is very high on idle.
Process Explorer shows that the high cpu usage is used by DPCs, System and SMSS. See here:
I used the xfperf tool from the Microsoft Performance Toolkit to find out what exactly is causing this. It found that its being caused by a few driver/system files: ACPI.sys being the mail culprit. This leads me to believe that it could be a driver issue. I started with the default drivers that the OS installed then tried the drivers on the ASRock website (they said Vista 64bit, not Win7) but they didn't make a difference. I also installed the the latest nforce drivers (15.49) with no change. I'm at a loss on how to troubleshoot this.
Screenshots here and here
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