My computer cannot boot up if I put the motherboard inside the case, but it works flawless when it is outside of the case. The case is Enlight 7237, its the one with 250wt power supply, so i switched it with my old 300wt power supply. That is all i did to the case.
I have shuttle AK31A Ver 3.0, Duron 750MHZ, Kingston 128mb, samsung HDD, dvd rom and Liteon cd writer. Thank you so so much!!!!!!!!!!!!!