ic7 dual channel problem

[Kaane]

I am having a problem with my board enabling dual channel. I got 2 stick of corsair 512MB xms 3200, problem is one is a bit older then the other, they have different revisions. System boots just fine at 200Mhz cl2, but when I run the benchmarks I only get 2950mb/s scores in sandra, and cpu-z show my board as single channel. I used to have 2 stick of 256mb hyperx kingston and it worked great and dual channel worked ok.

I changed the slots on the board to test it out, I had it in slot 1 and 3, tried 2 and 4, get the same results no dual channel.

Could the different revisions on the ram stick make the board not enable dual channel?

Let me know if you guys have any suggestions.

[crotale]

I've tried running diffrent memories.
Diffrent memory, same memory chips: ok
Same memory, diffrent chips: wouldn't overclock so much

Make sure GAT is Auto-Auto-Auto-Disable-Disable under Advanced Chipset settings.

For more info, check this page out:
http://www.ocforums.com/showthread.php?postid=2393483

[Kaane]

I am not even overclocking at all, I am running my 3.2ghz cpu at 3.2ghz and ram at 200Mhz CL2.5, I turned off the stuff under GAT to your recommendations and still no dual channel mode. I will have to borrow some ram from a friend and see if it's ram related.