Replacing a PSU

[Jerry Seinfeld]

I'm about to replace my PSU while watching a tutorial and in the video he mentions to unplug everything from your motherboard without giving me a reason. I'd just like to understsnd why he's doing this. Also I'm worried about unplugging my primary SSD with Windows, will this affect anything when I boot it up again?

 

[jankerson]

No it won't.

You have to remove all of the power cables from the system before putting in the new PSU.

Then use the new ones that came with the new PSU.

 

[Jerry Seinfeld]

I successfully swapped my PSU thanks for the respons.