RAM detection

[Relik93D]

Hey guys

I recently just built my system and after installing 6GB worth of RAM only 4GB is being detected.
I have tried 2 4 6 slots and tried swapping the sticks around in those sequences but when I try the 1 3 6 slots the PC won't boot even after pursuing the MemOK! solution.

Windows 7 Ultimate x64
Corsair 6GB 3x2 XMS3 1600MHz
Intel Core i7 950 3.06GHz
ASUS SABERTOOTH X58
SStone ST75F-P 750w Modular

Thanks for the advice!

 

[LupoLover]

My sabertooth wont boot unless memory in 1 3 6 either.

 

[cmndr_andi]

Aye, due to intel spec the board can't boot when RAM is just in 1,3 and 5. This isn't a fault - just the way its made, put them back to 2,4 and 6 (A1, B1, C1).

As for only 4GB being detected is that just in windows system properties or in CPUZ as well?