Kingston PC2-4200 (DDR2-533) Bus Speed Computer RAM 512 MB Capacity per Module

FAQs About Kingston 512MB PC2-4200 DDR2-533 Computer Memory (RAM)

Random-access memory (RAM) is a temporary storage of information your computer system is currently using so it can be accessed quickly and save you time. Having a generous portion of RAM not only helps your computer perform its routine tasks but also helps you use different applications and programs at the same time. RAM holds your place in a given program and allows you to switch back and forth between programs to keep your productivity level high.

There are many units available from Kingston, offering these features and options:

• Total Capacity: Choose from 512MB, 1GB, and 2GB.
• Form Factor: Options include DIMM and SO-DIMM.
• Number of Pins: Choose 200 or 240.
• Number of Modules: Options include 1, 2, 4, and 5.

Dual in-line memory modules (DIMMs) are units with one or many RAM chips on a small circuit board with pins that create a connection to the computer's motherboard. There's plenty of physical room in most desktop computers for these units. DIMM units can also carry features that SO-DIMM units can't, like ECC and Registered.

Small-outline dual in-line memory modules (SODIMMs) are similar, only designed specifically for laptops. Since laptops are lightweight and compact, there's not a lot of physical space for components. SO-DIMM units are half the length of DIMM units, lending flexibility when crafting laptop memory slots. Today's laptops are sometimes designed with easy user access to SO-DIMM sections for upgrading the system's RAM.

The bus is the name given to a circuit that connects parts of a motherboard to one another. and its speed indicates how fast it can transport data from one place to the next. Buses designed to handle large amounts of data usually accelerate as the information travels. The speed is measured in megahertz (MHz) and refers to how much information can move across the bus simultaneously.

When referencing bus speed, usually the speed of the front side bus (FSB) is indicated. The FSB joins the CPU to the northbridge, which is responsible for the highes-performance tasks, and its rate can fall anywhere in the range of 66 MHz to more than 800 MHz. The rate affects the overall performance of the system. PC2 4200 DDR2-533MHz is styled for use in systems with a 533MHz FSB. The number 4200 references the module bandwidth or the highest allowed amount of data it can send each second, which equates to 4200MB/s or 4.2GB/s.

These are also called RAM chips. The term is used loosely to describe SIMM, DIMM, and SO-DIMM memory units. They all perform the same job when the system is in use, but there are different types of chips available for different situation. DDR2 (Double Data Rate 2) modules that are used in desktops or notebooks are mostly unbuffered, meaning that the memory is connected directly to the chip-set controller