Frequently Asked Questions
What is the difference between 4 layer module boards and 6 layer module boards?
All memory modules today are built by soldering individual memory chips to a circuit board (Module Board). The module board is made up of layers stacked together like pancakes. The job of the module board is to act as a highway system for the memory information from the motherboard to these memory chips. The 6 Layer boards have isolated 1 layer for ground traces, 1 layer for power traces and 1 layer for the memory information on each side of the memory module. A 4-layer module board places the ground traces and power traces on the same layer. This means that the traces have to be routed in a more indirect way and the traces are placed electrically much closer. The result is more bleeding of signal from the ground traces to power traces – sometimes called module noise. The more expensive boards with 6 layers do a much better job of isolating the signals so the memory information is more accurate. AMD recommends 6 layer module boards for all Athlon & Duron based systems.
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