I recently got an athlon xp 2600 chip and applied it to a Gigabyte2004RZ motherboard (athlon xp motherboard). I put it all together and monitor will not turn on. I tried 2 different monitors with 2 different reliable video cards. Nada!! Is there a common installation problem that keeps the monitor off, like memory, power supply, or message LED/power/sleep LED. I don't get audio error beeps either????!!!!! Please, someone, anyone help!