Memory-Up - RDIMM VS. LRDIMM. (Registered DIMM VS. Load-Reduced DIMM) LRDIMM was first introduced in 2009 to solve the rank issue that the RDIMM was facing. As DDR3 RDIMM's speed approach 1600Mhz~1866Mhz,
What is the difference between dimm and rdimm memory?