Hello.
In the end I buy Mugen at my own risk but I`m lucky
and Mugen fit on MSI KA780G 780G s.AM2+.
Some info about
:
Mugen lock 2 memory slots but when you insert memory modules first then install Mugen everything is ok.
Second problem is very large chipset heatsink and to install Mugen you must install the heatsink then on installed heatsink apply fan.
I add some pictures so you can see like everything fit.
