HP ProLiant SL165s Memory technology evolution: an overview of system memory t - Page 1

Memory technology evolution: an overview of system memory technologies Technology brief, 9th edition Introduction ...2 Basic DRAM operation ...2 DRAM storage density and power consumption 4 Memory access time ...4 System bus timing...4 Memory bus speed ...5 Burst mode access ...5 SDRAM technology ...5 Bank interleaving ...6 Increased bandwidth ...6 Registered SDRAM modules ...6 DIMM configurations ...6 DIMM error detection/correction technologies 8 Memory protection technologies ...10 Advanced memory technologies ...12 Rambus DRAM...12 Double Data Rate SDRAM technologies 12 Fully-buffered DIMMs ...15 Importance of using HP-certified memory modules in ProLiant servers 18 Conclusion ...18 For more information ...19 Call to action ...19