Gmack :
alexoiu :
Try testing each slot with single RAM module. See if the system does POST and report the right amount.
Power off the system before reseating the module.
Yes thanks for your answer, I tried that, when tried testing the board with one 6GB it only reported 2GB.
Gmack :
bignastyid :
6Gbx4? 6Gb modules don't exist. In order to have 24Gb of ram on a z77 board(4 memory slots) you would need 2 8Gb modules and 2 4Gb modules. Whats the model number of the memory(should be located on a sticker on the ram).
Memory (24 GB [4 GB X6] DDR3-1333 Triple Memory Module Corsair XMS3.
That's not a model number(this is an example of a corsair memory model number CMX2GX3M1A1333C9) , but what it looks like what is happening is you are confused with what you have. You can't be running 6x4Gb since the motherboard only has 4 slots you could only have 4 of the 6 sticks installed, and you can't be running 4x6Gb since 6gb modules don't exist.