Memory questions

[valbren]

i have three ddr 400 pc3200 sdram dimms.two of them are 512mb and they came on board in the fujitsu pc.the third one is a ddr400 pc3200 sdram with 1gb capacity.the two of the same are working in dual channel.if i put the third one (1gb)the dual channel is off.does it have to be a problem(reboots,bsod e.t.c)?the two of the same supports early ras# precharge.the big one is not.is it also a problem(big or small)or not?

 

[raybay]

You want the memory to be identical in dual channel, for best results. Otherwise, the system runs at the speed of the slowest, and conflicts are always a possibility.

 

[Archean]

You'll put in peril, your system's stability if you try to plug in different kind/type of ram in a system; therefore as raybay very rightfully suggested get 'identical' type/make of ram sticks.

 

[valbren]

i suppose that the capacity affects the speed of the ram ?

 

[Archean]

Ram speed is not related to capacity.

 

[valbren]

thanks for the replies.