I replaced my computer with a soyo kt400 and a AMD2400 processor. it will not post. Fan is running no video or beeps. processor was installed correctly. all cards removed and re seated. no other cards installed at this time. tried cmos reset also. 300 watt power supply. However power supply is not rated to highly in the 3.3 volt area any ideals? Gforce video card also tried another video card no help.