Interrupts cpu usage always 15-20% usage

[goytgogo]

I just assembled a PC with ASUS P7P55D-E, i5-750, ASUS EAH5750 FORMULA and raid 0 disks. When I installed a fresh operating system xp, the Process Explorer always showed that the cpu usage of the interrupts 15-20%, it was always the core 3 in use about 60-75%. I have updated the BIOS to the up-to-date, restore the default setting of the BIOS and only set the raid in the BIOS. I only installed essential driver such as INTEL RAID, Realtek and ATI Display Driver. No overclocking and other applications running. Everytime I started the os, CPU was 15-20% usage already and core 3 was the only high core.

Is it the problem of the CPU itself? Any idea will be appreciated.

 

[dogman_1234]

Hello, and welcome to THG.

Interesting. My guess would be that the software has locked the 3rd core to major processing. Is there an option in the BIOS to setup specific cores to process?

 

[ghnader hsmithot]

Hello, and welcome to THG.

Interesting. My guess would be that the software has locked the 3rd core to major processing. Is there an option in the BIOS to setup specific cores to process?

is there such a thing?

 

[wolfram23]

I think after initial install the OS can take a little while to kind of... sort out everything. See if the usage drops after 10-15 mins.

Otherwise, definitely try to restore BIOS defaults.

 

[goytgogo]

I didn't see there is an option to lock the certain core for the primary cpu core, and I have restored the default setting in BIOS already, the Interrupts CPU usage is the same as before, always 15-20% in any situation(high CPU usage or low CPU usage) all the time(from start the os to shutdown the pc). Thanks for your replies.

 

[dogman_1234]

is there such a thing?

I believe so.