SAME PROBLEM AGAIN! Can't install 6GB on Asus Crosshair IV Formula

[rafarataneneces]

I have Asus P7P55D EVO and Intel Core i7 875K
Ram only works in slots B1/B2

Anything that I put on A1, makes the system stop posting

I have OCZ DDR3 1333Mhz and Corsair DDR3 1600Mhz

So I bought Asus Crosshair IV Formula and AMD 1090T

SAME THING HAPPENED AGAIN!!!

There are actually little lights in this board that stop on RAM, so I know it's the RAM

on this RAM, slots A1/A2 work great

Slot B1 doesn't works, if I put anything on it, it won't even post
Slot B2 doesn't works either, if I put anything on it, it won't even post

So, two boards, different architecture (in fact, one is Intel, another one is AMD)
different RAM manufacturers and RAM speeds

Can I conclude ASUS sucks BIG TIME?
Or what is the problem here?

I have sticks of 2GB of RAM

 

[mosox]

Check what are the voltages recommended by the RAM manufacturers, if they're different (say 1.5 and 1.65 volts) the sticks won't work together no matter what mobo you have. I would get rid of the OCZ and get two more Corsair same model.