Asus maximus extreme x38 ram issues

[papakostaskostas]

Hello,
i have a problem with my motherboard and ram memomry

i just bought g skill 16 mb ram 1600mhz (4x4gb)

when i put the mhz of my ram higher that 1333mhz my pc cant boot

anyone knows how i can put them to full mhz range? (1600mhz)

my previus ram waz ocz 1600 4 gb nd it worked perfectly at 1680+ throught overclock

thanks

 

[Xttony]

Check that you have set the ram timings and voltages right. Try enabling XMP.