Use Of SODIMM

A SODIMM or small outline dual in-line memory module is type of computer memory built using integrated circuits. SODIMM is a smaller alternative to a DIMM, being roughly half the size of the regular DIMM. SODIMM is often used in systems which have space restrictions such as notebooks, small footprint PC’s, high end upgraded office printers, and networking hardware like router. SODIMM have 72,100,144,200 or 204 pins.

The 72 and 100 pin packages supports 32-bit data transfer, while the 144, 200 and 204 pin packages support 64-bit data transfer. This compares to regular DIMM that have 168,184, or 240 pins, supporting 64-bit data transfer. Most types of SODIMM can be recognized at a glance by the distinctive notches used to “key”  them for different applications. 100-pin SODIMM have two notches, 144-pin SODIMM have a single notch gear the center, and 200-pin SODIMM have single notch nearer to one side.

The 200-pin SODIMM has two notch locations. If the notch is located away from the center, it indicates the DDR class of memory. When the notch is located nearer the center of the board, it generally indicates that the RAM is of the DDR@ type. These two types of memory are not interchangeable. The different notch locations are designed to prevent incorrect installation. SODIMM is more or less equal in power and voltage ratings to DIMM, and as memory technology moves forward, both SODIMM and DIMM become available in equal speed and capacity.