I have the same results and the same question! update the BIOS and try a different power plan. you have NO issue. 31µs for ISR and 101 for DPC are awesome good. try a better 1GBit card from Intel or reduce the speed from GBit to 100MBit. Maybe this helps. Which USB devices do you use? Can zip and upload the ETL file, please? Are you sure though? On average, whenever I plug in something the CPU shoots up 20 to 30 percent and sometimes lags the computer.