Question about Mobo
Question about Mobo
You're facing a compatibility issue with your current setup. The i5 6400 requires a specific motherboard configuration, but your PSU only supports a 24-pin M.2 and 4-pin CPU power. There don't seem to be any standard motherboards that match these exact requirements. You might need to upgrade your PSU or consider a different motherboard model that supports the 24-pin M.2 slot and 4-pin CPU power.
Standard 100 and 200 series boards generally work well with most setups (many include 8-pin EPS).