R4E with 4G*8 ram - 16g is recognized only

[adodb]

I installed 2 set Corsair CMT16GX3M4X2133C9 in in all 8 slots. But only 16gb is recognized in windows and in BIOS.
I use some program to check that.....only A1,A2,B1,B2 is running........
I try to remove and restall the ram many time..but the result is same....
Finally I have traced some problem on C2,D1,D2 ram slots.....
If I install the ram in A1,A2,B1,B2,C1......that is ok....20gb is recognized Windows and bios show.
but try to install ram in C2/D1/D2 ram slots.............only 16gb can be recognized in windows and in BIOS

I am sure C1, D2 are working normally...
Before I got 2 set Corsair CMT16GX3M4X2133C9. I install samsung 1333 4G ram *4 in A1,B1,C1,D1.....Evenything is fine.

should i rma my R4E?

Sorry for my poor english.....

[adodb]

HiVizMan wrote:
I would like you to test with one stick of ram only.

http://www.memtest.org/ Please only use 4.2 I like to use the USB version.

One stick only.
Start on one side and work in to the CPU and then onto the other and work out away from the CPU

Run at default F5 setting in BIOS.

"test with one stick of ram". You mean I should use one stick of ram to test "A1, B1, C1, D1, A2, B2, C2, D2" ram slot?
I have done that with my corsair ram already. (With memtest86)
When I just use one stick of ram install in A1, B1, C1, D1 ram slot. That is OK... The PC can be booted up and at least pass the memtest86 one time.
But it cannot boot up when I install the ram in A2, B2, C2, D2 slot.
I also try to install my samsung M378B5273DH0-CH9 4G (in the compatible list) in A2, B2, C2, D2 slot. Still fail to boot up.


I also have some issue on my samsung ram
I have 4 sticks of samsung M378B5273DH0-CH9 4G ram. (e.g. Ram A, Ram B, Ram C, Ram D)
When you install "Ram A -> A1 slot, Ram B -> B1 slot, Ram C -> C1 slot, Ram D -> D1 slot". It only can recognize 12G.
If I try to swap Ram C and Ram D (Ram D -> C1 slot, Ram C -> D1 slot). It only can recognize total 12G.
Is this normal?

[adodb]

ASUS's agent said that because my mb can working on 8 sticks of geil 4g ram. And my 2 set of corsair ram is not in the compatible list. I cannot rma the mb

[HiVizMan]

Yes that would be correct, however it does not explain why your motherboard works with all of the 8MB ram in some slots but not in others. That is what I am trying to figure out.

[HiVizMan]

Please run the tests in the order I asked you too. Thank you.