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Tip T100 - Large memory systems (1GB or greater) should use Registered/Buffered memory, especially if more than 2 are installed on the same channel. This improves signal quality by reducing the load on the chipset channel. While these modules add an extra clock delay due to the on-board buffers (thus CL2 effectively becomes CL3), the stability will be worth it. Server chipsets with many memory slots generally require Registered memory.
Fix: If you plan on adding more memory, consider replacing the modules with Registered/Buffered modules. Do note that you cannot mix Unbuffered and Registered/Buffered modules on the same channel, but you may be able to if the chipset has multiple memory channels.

SiSoftware Sandra Help File

kā var nobuferot to memory un vēl es nekādigi nevaru saprast vai mans 1 gb rams ir ar tādu pašu frekvenci kā 256 mb es tajā programma nesaprotu kur to frekvenci tieši redzēt