Hi guys !!

 

I try Corsair Dominator Platinium 2666 mhz on R4E and show me debug code "b5".

 

The CPU is 3930k.

 

Its problem of RAM ?

 

How can I solve it and booting correctly.

Are you trying to boot the ram at 2666MHz because I doubt you will be able to get that with a SB-E CPU, especially not in quad channel.

I made Clear Cmos and load defaults.

 

And the last RAM boot at 2400 or 2133.

used 125 strap ?

used 125 strap ?

 

Not.

 

Dont boot.

 

I think that this RAM modules not are compatible with R4E and SB-E.

 

Draco tell me that it works but I think that he is on error.

Well I have these running too but my SB-E IMC couldn't handle them, IVY-E has no issues at 2800+

I buy another kit 2400@ CL9.

 

G.Skill Ripjaws Z compatible with X79.