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When properly used, the term "dual channel" refers to the DDR chipset on certain motherboards designed with two memory channels instead of one. The two channels handle memory-processing more efficiently by utilizing the theoretical bandwidth of the two modules, thus reducing system latencies, the timing delays that inherently occur with one memory module. For example, one controller reads and writes data while the second controller prepares for the next access, hence, eliminating the reset and setup delays that occur before one memory module can begin the read/write process all over again. Think of it like two relay runners. The first runner runs one leg while the second runner sets up and prepares to receive the baton smoothly and carry on the task at hand without delay. While performance gains from dual-channel chipsets aren't huge, they can increase bandwidth by as much as 10 percent. To those seeking to push the performance envelope, that 10 percent can be very important.
So the next time you come across a product that's touted and sold as dual-channel DDR, know this: It's simply two DDR memory modules, packaged and marketed as a specialty product or a must-have "kit." If indeed you have a dual-channel platform and you want to take advantage of the performance gain it offers, our advice is to opt for high quality and service over expensive packaging, and simply purchase your DDR memory in pairs. However, be very careful to order two modules with the exact same specifications; the modules must be identical to each other to perform correctly.

Sir Lancelot Escreveu:Após ter testado 9 boards nf2...e de ter xegado aos 250MHz de fsb e um barton aos 2600MHz...as nforce2 ja n têm segredos pa mim...eheheh
Como estamos a falar de dual channel, o 3º slot é pa adicionar memoria a um dos canais.
Por exemplo:
Num canal (1º slot)= 256Megas
Noutro canal (2º e 3º slot) = 256 + 512 megas
No total terao um giga de memoria em dual channel.
O modo de funcionamento será igual ao k descrevi no meu post anterior. Ou seja, ficará a funcionar segundo as specs do dimm mais fraco!
Hasta!
















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