4GB vs. 6GB RAM for build 7137

For my 7137 x64, it seems the system is slower with 6GB RAM than 4GB RAM. Pagefiles are fixed at maximum size as recommended by Windows for both cases. Any one that has 6GB in their system seeing this?

toolbox

Are they all the same speed, mfr, size, and placed in the correct slots?

Ken

they are not the same speed but I am running them at slower speed than the slowest pair. Yes, they are in the correct slots for dual channel operation.
Both the BIOS and the system detect them correctly.

toolboxve
running them @ the lowest speed should be supported, are the timing and latency the same? Here a clip timing 3,4,4,8 and cas latency 3. Both pairs should have the same even if one pair is 1066, and one 533. Both will run at 533 but might cause hiccups if the timing or latency are diff.

Im gonna pop out and see if I can find something more concrete.

Hope this helped somewhat

Ken

My issue is not with mem timing.

I have a same problem.. I have 6gb and my system shows 4gb..
In cpu-z my memory is ok 6gb

look at print screen

http://www.igorvfx.com/forum/baboo/image2.jpg