I have an unstable PC, which crashes once a day with a white or uniform color screen. Most likely power supply problem - the replacement is in the mail. The strange part is that I have to hold the reset button for 10-15s to cause reboot. Is there any meaning of this unusual behavior? My system: Intel i5-9600K, 32GB DDR4 2666, Asus PRIME B360M-A, 2x HP EX920 1TB, MediaPC MP-500 power supply, Ubuntu 22.04. BTW, when the system runs normally, reset button action is immediate.