integrated powerstages on higher models) is not that they can't handle the Amps that the CPU might pull. This is not a real 10-phase VRM for the CPU, it is a 5-phase VRM where each phase has twice the components acting in unison to spread the thermal load a bit more, but it doesn't give the benefits that real additional phases would give.
They are using it in a 5+2 configuration, with twice the chokes and MOSFETs (10x 4C029N / 10x 4C024N) and most likely doublers on the rear of the PCB. They use the controller IR35201, which only supports 8 real phases. 10+2+1 is typical MSI marketing for boards that use seperate MOSFETs on the VRM.
