stupid question about chipset.

[chrollo2k16]

I have an i5-7400 which is currently in a prebuilt asus motherboard. I want to upgrade the motherboard but there is one thing that is currently confusing me. What is the difference between lga 1151 and lga 1151 (300 series) and which one do i buy for my cpu?

 

[terry4536]

For the I5-7400, you need the non 300 series LGA 1151 motherboard. For example a Z270 or H270 motherboard would work for that processor.

The 300 series motherboards are for the 8000 and now 9000 series of CPUs.

 

[boju]

7400 will work on 200series chipset out of the box.

7400 can also work on 100series chipset with a bios update but need a 6xxx intel to do the update.

300series is only for 8 and 9th gen Intel's.