Yes. Clocks and reactances in circuit always spring to mind as likely candidates almost immediately when you include hardware. A PCB's EMI can be altered measur

Yes. Clocks and reactances in circuit always spring to mind as likely candidates almost immediately when you include hardware. A PCB's EMI can be altered measurably by software decisions. An acquaintance asked the other day why his toshiba portable was locking up in boot. First question I asked was did you change the ram clocks in the bios. Many have seen timing and slew with all it's reasons while overclocking. Nothing at all to do with quantum effects, per se.