DIMM
n.n. Stands for Dual In-line Memory Module. A small circuit board that holds memory chips for a computer. You plug these into the motherboard to increase the amount of RAM.
n. Abbreviation for Dual In-line Memory Module. A series of dynamic random-access memory integrated circuits mounted on a small circuit board and designed for insertion into a motherboard socket. It features independent electrical contacts on each side of the module, doubling the data path compared to older standards.
I need to install another DIMM to speed up my PC.
Before purchasing the upgrade, check if your motherboard supports the specific speed and capacity of the new DIMM.
Modern high-performance workstations often require matching pairs of DIMMs to take full advantage of multi-channel memory architectures and maximize data throughput.
An initialism for Dual In-line Memory Module. The term was coined as a successor to the SIMM (Single In-line Memory Module), reflecting the transition to a design with independent electrical contacts on both sides of the circuit board.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.
Commonly used in technical specifications for desktop computers; laptops typically use the smaller SO-DIMM variant.
Last updated July 22, 2026