For Non-ECC UDIMM, we should first explain the meaning of the individual technical terms:
Non-ECC (Error-Correction-Code): This type of memory does not have error detection and correction.
UDIMM (Unbuffered Dual Inline Memory Module): The memory is based on a 64-bit data bus (which is dual compared to the original 32-bit SIMM = “Single Inline Memory Module”). There is no buffer on the memory module; the RAM is directly supplied with all address and data lines from the PC’s chipset.
The main advantage of non-ECC UDIMM memory is its optimal usability in a PC designed for a user and standard applications. The straightforward addressing of the RAM by the PC’s chipset requires only a few clock cycles to store and retrieve memory contents. The absence of additional security technologies and the extremely high production capacities contribute to a favorable market price.