SPD - Serial Presence Detect (SPD) is information stored in an electrically erasable programmable read-only memory (EEPROM) chip on a synchronous dynamic random access memory (SDRAM) memory module ...

The updated standard, SPD4_01_02_11: SPD Annex K – Serial Presence Detect (SPD) for DDR3 SDRAM Modules (Release 6), describes new memory timing parameters and enables higher capacity memory modules, ...