Crosshair formula iv + f3-16000cl9-4gbfls

[cv222]

just bought F3-16000cl9-4gbfls
cpu:x6 1090t
m.board: crosshair formula iv latest bios
v.cardny quadro fx1800

my problem i cant use stable this ram whith 2000 mhz
whith 1866mhz there is no problem with prime95 in 3 hour.

then i tryed to up NB voltage
so now my system doesnt work.

on the motherboard dram led is flashing. i have try clrcmos but nothing is changed.
is it ram problem?

(sorry for my poor english

[mrcmtl]

I don't know how you chose to reach 2000 but normally you just set your AI Tuner to D.O.C.P and choose Profile 1 and save and exit. It will automatically choose the right profile that is registered on your RAM. To be able to run at 2000, I've raised my CPU/NB voltage to 1.25V. Since you have 1.25V on the CPU/NB you can also raise the NB to 2.6-2.8Ghz for more performance but that's only if your default overclock is stable.

[cv222]

i find the problem my mobo bios get foult.
So i sent it to technichal service. Thanks for help.