DDR Ram

I recently upgraded my ram from 512 to 1.5. I have an MS-6728 (v1.X) Mainboard. Basically my question is how do i know my ram is running DDR and not SDRAM? I didnt quite understand the "DDR population rules" table in the manual. I basically have 2 channels (a+b) each with two dimm slots (A=dimm1, dimm2, B= dimm3, dimm4). I had a stick of 256mb in Dimm1+3. I moved the 256 from dimm3 to dimm2, giving me 512 in channel A(dimm1+2). Then I plonked a 1 gig module in Channel B, dimm3. The 1 gig ram is a different make. anyone who has done this b4 may know wat im goin on aboot, anyone who hasnt will think WDF! Any help appreciated!TY

 

If you use a program like
PC Wizard 2006
http://www.cpuid.com/pcwizard.php
and look under
hardware
mainboard
physical memory
and then the information tab

it will show what is in each slot

PS: Im sure there is an easier way:cool

 

I think you're asking if your RAM is running in Dual Channel mode. DDR = Double Data Rate. SDRAM = Synchronous Dynamic Random Access Memory, of which there are DDR types. For Dual Channel operation (on a board that supports it), RAM must be installed in matched pairs, and in the proper slots. To avoid confusion about which slots are paired, they are typically color coded, and not necessarily adjacent to eachother.

 

Ta. I think im startin to get this..... I put in a 1 gig stick. So for dual channel i should put a similar 1 gig stick in the other channel....tell me if im on the right lines lol.

Also if i put my 256mb sticks in the other two slots would they work in DDR aswell as the 2 gig? TY

 

Similar? No. Exactly matched, yes. It's often difficult to find a second stick whose parameters match all those of the first, which is why you see "dual channel kits" sold-- two identical sticks of RAM in the same package.

In answer to your second question-- in all likelyhood, yes. Remember, the board must support dual channel operation first.