UnOfficial Asus Rampage II Extreme Thread

[zoqiet]

Hi

I have strange problem with Rampage II Extreme, bios does not seem to see all of the memory. I have triple kit (3x 2GB) of Dominator GT TR3X6G1866C7GT, but in the bios it shows only 4GB usable, I tried to test the memory one by one and the board see it but if I plug them all 3 together it shows only 4Gb, I tried even getting another memory OCZ 3x2gb 1600mhz Kit and it shows all 6Gb but if I put back dominator no.
So any one have any idea about this problem

Note>
I used bios 1406 and 1504 same problem
I tried to change the memory in deferent slots same problem too

the specs of this PC is

CPU I7 975
VGA 2 x 295GTX
3x HDD
PSU 1250W enermax
1250W enermax the cpu and the north bridge are liquid cooled
and the reset is normal stuff

It's because your memory controller on the CPU can't connect to one of the dimm channels. You can most likely fix this with reinstalling your CPU and sink. Cause its normally caused by some of the pins not having proper contact. It can also be that some of the pins has been bent.
Edit: Also, this is a problem I have countered when trying to use lower latency on the sticks, then having one of my dimms fade out. (If you use AUTO this might be the problem, try set em at 9-9-9-24 and vdimm at at 1.65). My dimm fading out on low CAS were fixed by a heatsink reinstall. (One that had more proper pressure on the CPU).