Ab initio random structure searching to live density- functional-theory (DFT) in computing power and science-based restrictions to help in finding the current structure has led several research methods used in Ab initio random structure searching. Determining the structure, which was interesting, and sometimes the results are likely to discover new materials, for example Pickard CJ and Needs RJ (2006) presents the structure of High-Pressure Phases of Silane by SiH_4 an amount of two units (Two Si atoms H eight atoms) were assigned randomly to the 100 structure, that structure C2/c of SiH_4 at a pressure of about 262.5 GPa (Figure 1) Stable and the estimation Density of level energy Fermi indicates that the structure C2/c may be possible to structure Superconductor at high temperatures.