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Look at my "underclock post" then maybe really laugh at me here, or help me on this thing.

Everest and one other which (too worn out) have said my "Memory bus is DDR-2X 200" I understood this to be a DDR rig, so am I reading the wrong stuff--or is the memory bus what runs the mem-slots? I'm lost now...big time. Any thoughts appreciated, and ya can even give em mockingly cause I should be able to figure it out.
 

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This motherboard accepts dual channel mode for DDR RAM. However, to access this mode you must have DRAM of the same timing values on SPD (Serial Presence Detect) and it usually helps with Intel to have identical dimm strips although some different build/products with the same timings will work.

Your processor is running on an 800MHz fsb (Front Side Bus) and the ram is DDR 400MHz (if it is correct for that processor and board). Check to be sure of the SPD settings of your DRAM and the MHZ value. Now for the CPU to speak to the ram it would do it at 800MHz ---> (400MHz X 2) = 800 : 800 and the speeds are identical meaning no stall in the transaction.

If however, you are not running your dram in dual channel mode you then are running 800 --> (200MHz X 2) = 800 : 400 or a 2 : 1 ratio and there will be stalls.

So what your system is telling you is the single speed stick value which is 200MHz or 200MHz X 2 = 400MHz so you are not running in Dual Channel Mode.

I advise you to place identical strips in Dual Channel Mode. Dual channel mode (with the correct strips) will work automatically if you place them in Dimm 1 + 3 or Dimm 2 + 4.

You can also place three strips for Dual Channel Mode. If you place 1 X 512MB in Dimm1 and 512MB in Dimm3 along with 1GB in Dimm 2 or 4 you will maintain Dual Channel Mode. Keep in mind that the Dimm placed in Dimm 2 or Dimm 4 must be double the capacity of those in Dimm 1 or Dimm 3.

R
 
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