Memory bus probs

[Reqlis1]

I have three 256mb pc3200 ram cards. I thought pc3200 ram was supposed to run at 400mhz but it is only running at 200mhz. I need to know if the memory matchs the bus speed or front side bus. My cpu has 200 fsb and 800 bus speed according to cpu-z.

 

[Mental Liberator]

Can you motherboard support pc-3200?

 

[setishock]

Works like this...

DDR means double data rate.
The system sends 2 chunks of data with ddr ram instead of 1 chunk as was with sdram. So by sending 2 chunks it only needs to run at half the speed. If the ram was a sdr meaning single data rate then it would have to run at 400mhz to match the ddr speeds. So the ram clock only needs to really run at 200mhz to do the job. Take the 2 chunks of data and multiply that times the ram clock and you get 400.
Those ram salesmen need to tell the whole story of what's going on in the system concerning ram clock speeds. Get a little confusing, but you're fine...

 

[Reqlis1]

My board does support pc3200. I have a ECS 648fx. Thanks for the reply. Oh and I would never purchase hardware from a "salesman" (officemax)