Difference between buffered & non-buffered memory?

[joepaloy]

Can someone please explain the difference between buffered and non-buffered memory (specifically DIMM sticks like PC66, PC100, and PC133).

How can you tell the difference?
Are motherboards made for either one or the other?

Regards,

[Fingers]

Memory modules 101: The basics (http://www.crucial.com/Crucial/pvtcontent/memorytype.asp?model=CT32M64S4D75&memtype=Non-parity)

Memory modules 101: ECC (http://www.crucial.com/Crucial/pvtcontent/memorytype.asp?model=CT32M72S4R75&memtype=ECC)

[joepaloy]

Thanks,

very useful information, all my questions were answered.