In electro-magnetically levitated (EML) samples (undercooling up to 127 K) mostly primary dendrites or cells with regular eutectic appeared. An anomalous eutectic made of primary CoSi2 with intergranular CoSi of different size was obtained in electrostatic levitation (undercooling from 95 K to 304 K), EML and electromagnetic levitation accompanied by the application of a static magnetic field at high undercooling up to 150 K. Complex shape of primary phase with precipitates occurred in electromagnetic levitation + static magnetic field at undercooling of 199 K. The levelof undercooling also gave rise to phase selection between CoSi and CoSi2 according to nucleation rate and extent of convection, i.e. the turbulence of the melt ranging from strong in EML, damped when an electromagnetic field was applied, and weak in ESL [2,3].