Hello! If memory clock speed is set to Auto PC, starts and windows boot. When in Auto speed is set to PC-533. Now if speed is set PC-800 the blue screen shows up after showing boot sequence or PC will not start but power up.
Specs:
CPU: Athlon 6400 X2
Memory: 4x2GB PC-800
Power supply: 500W
GPU: GeForce 8800 GTX
Mobo: Asrock ALIVENF7G