The other extra connexion on the ATX 20pin connectors are just ground and the green wire that is "Power on" so that motherboard can start and stop the PSU.ces wrote: If that is so, then could you get by with just connecting the two boards through that 4 wire plug? The extra connections on the 20 wire must add something, or you wouldn't be doing it. What do they add?
I didn't know that winmate only has a 20 connector ATX plug. What do you do if you have a 24 connector motherboard?
The other 4 pin on the 24pin ATX connector are just redundant if you need more info read this Link so if the power supply is under 300W make no sense to have the additional 4 pin. If you see in the photo my motherboard also uses a 24 pin connector but is connected to only 20pin