DIMMs are the newer tech.
rimms
RIMMs are traditionally faster and more expensive
72-pin SO-DIMMs, 144-pin SO-DIMMs, 160-pin SO-RIMMs and credit card memory
ECC
RAM (Random Access Memory), SIMMs (Single Inline Memory Modules), DImms (Dual Inline Memory Modules), RIMMs (Rambus Inline Memory Modules).
You replace C- Rimms with Rimms.
dimm is better, dimm is faster, most motherboards is designed to work with this type of memory..
ECC
ECC
No they are not compatiable they shouldn't even fit in the same slot due to the gaps at the connectors being different..and even fi you could get them to fit they run using different technology..ddr2 is double the date rate of the ddr..and s-dimms wow havent heard bout them in ages....
You replace C- Rimms with Rimms
For RIMM modules, install the RIMMs beginning with bank 0 then 1 and so on.