When making a power supply u discovered that there is a grey wire I don't know where to connect it or with which other to connect it with,can get a solution.
I believe (as I don't which PSU you are talking about) it's supposed to be "Power Good" return information from MB to PSU.
https://allpinouts.org/pinouts/
I believe (as I don't which PSU you are talking about) it's supposed to be "Power Good" return information from MB to PSU.
https://allpinouts.org/pinouts/