Hi guys, I have a strange issue with my computer. Sometimes when I press the power button on my computer it takes around 10sec for the computer to start receiving power and boot up. Also when I shutdown my computer there is sometimes a delay of up to 15sec before the computer switches off completely. The computer also makes a distinct click noise (only one click) just before the computer switches off completely. I suspect that it could be the PSU that is the problem. Can anyone please provide some advice regarding this?