Originally posted by: Fisher999
Originally posted by: Orbs
Don't the newest A64's allow for 400 MHz and dual channel for 4 way memory configurations? I think I read that here on AT actually.
That's what I thought too Orbs but it just came to me that it was at the MUSHKIN.com website that I was reading about what stevty2889 described.
If I recall correctly, though, Mushkin was only having the problem on SOME boards and ONLY when they used pairs of different RAM size and density. In otherwords, if ALL four channels were filled with SINGLE-sided same amount (512MB for example) RAM sticks everything was ok.
But if they used one pair of single-sided 512MB sticks in one memory channel and one pair of single-sided 256 MB RAM sticks in the other memory channel the memory controller defaults to 333MHz.
Furthermore, it was impossible to run any more than TWO double-sided RAM sticks in these boards because the boards "saw" each double-sided RAM stick as TWO sticks of RAM.
So for these particular boards the key in being able to use all four RAM slots in 400MHz mode was using the same density and single-sided RAM in ALL four slots (like 4 X 512 MB for example).
Now it just occurred to me that somewhere (it was probably here) i heard that it is Corsair who manufactures the most single-sided RAM sticks.
I hope I've been helpful rather than confusing !