SODIMM is short for Small Outline Dual In-line Memory Module. It is a type of computer data storage manufactured using miniaturized electronic circuits called integrated circuits. It is a smaller and thinner alternative of the Dual In-line Memory Module (DIMM), and approximately half the size of standard DIMMs. It is frequently utilized in systems with space restrictions, such as high-end upgradable office printers, portable or notebook computers (laptops), networking hardware (like routers), and small footprint computers such as PCs with a Mini-ITX motherboard. They were specifically designed to fit in slim notebook PCs and mobile internet devices. Although a typical one is approximately 30mm high, just like a standard module, it is significantly shorter-saving board space when you need it.
There are four types of these gadgets. They are as follows:
The first type is the 72-pin module it has a small cut out underneath the module next to the pins. This guarantees that the modules can only be inserted one way. This type is frequently utilized in the Pentium 2 laptop computer system. Its memory capacity ranges from 8, 16, to 32 megabytes. In addition, this module comes in a 64-bit configuration.
The second type is the 100-pin module. This type has two notches that support a 32-bit data transfer.
The third type is 144-pin module. It has a cut out along the gold pins and a single notch near the center. Like the 72-pin module this type can only be inserted one way. It is usually utilized in computers compatible with PC100 and PC66 SDRAM. Its memory capacity ranges from 16 to 256 megabytes. In addition, this module comes in both 72 bit and 64 bit Error Correcting Code (ECC) configuration.
The last type is the 200-pinmodule. It has a single notch closer to one side. Its memory capacity ranges from 64 to 512 megabytes.
Like the 144-pin module this module comes in both 72 bit and 64 bit Error Correcting Code (ECC) configuration. It has two distinctions for finding the notch almost indistinguishable to the naked eye. If the notch is positioned further outboard, it signifies the DDR class of memory. When it is situated nearer to the center of the board, it indicates a DDR2 class of memory. DDR and DDR2 classes of memory are not identical therefore the different notch locations prevent incorrect installation. When installing SODIMM Memory Module, make certain that you are well grounded. You can wear a wrist strap or other type of static control device to avoid static electricity from storing onto your body. It should also be in conjunction with the model's specific manual.
Here are the steps to install a Memory Module:
Make sure the power cord is unplugged and the battery is removed before beginning the installation, especially if the module is being installed into a notebook computer with an installed battery.
Locate where to access the memory slot for installation. It is usually located under the keyboard. It can also be accessed through a door beneath the machine. You have to refer to your computer's manual to carry out this step.
After ensuring that you're well grounded, take the memory chip by its sides or top. Never touch the gold contacts because even a small amount of oil from your fingers can ultimately interfere with the connection.
Insert it at a 30 to 45 degree angle while pushing tightly but gently into the expansion slot. Continue pushing until the security has fastened firmly on the sockets and has locked into place on each side of the module.
In majority of installations, the modules can be inserted to any accessible expansion slot. However, others require the memory to be installed in a particular order based on the module's capacity. You have to verify the correct installation sequence for your configuration by checking the manual.
Switch on the computer and follow the instructions from the computer's manual on how to recognize newly installed memory. Most computers will automatically identify the added memory being installed.
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This article touched the basics of the topic. I have 2 more resources related to the above. They are sodimm and sodimm . Do consider reading them.
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