Find Out More About PC2-3200 DDR2-400 512MB Computer RAM

Random access memory (RAM) acts as your computer system's short-term data storage center, retaining data being actively used so it can be accessed quickly. A sufficient amount of RAM not only helps you run and use different programs simultaneously and switch back and forth between them, but it also helps your computer system go about its daily tasks. RAM gives you the flexibility you need to get everything done easily and quickly on your computer.

What 4GB computer RAM units are available?

Several 4GB units are available, including:

  • Brands: Options include HP, Hynix, Infineon, Kingston, Micron, Nanya, PNY, and Samsung.
  • Form factor: Choose from dual in-line (DIMM) and small-outline dual in-line (SODIMM) memory modules.
  • Number of modules: Options include one, two, and four.
  • Total capacity: Choose from 512MB, 1GB, 2GB, and 4GB modules.
  • Type: Choose from double-data-rate synchronous dynamic random-access memory (DDR1 SDRAM), DDR2 SDRAM, and DDR3 SDRAM.
What is bus speed and what does it mean?

The bus is a circuit that connects parts of the motherboard to one another, and its speed is how fast it can send data from one area to the next. The more data the bus can handle, the faster it will travel. The bus speed is measured in megahertz (MHz), which denote how much information can move across the bus at the same time.

Mostly, bus speed addresses the speed of the front side bus (FSB) that joins the host bridge and the CPU. The FSB speed can run anywhere from 66 MHz to 800 MHz or more, and it has a great impact on the performance of the entire computer system. PC2-3200 DDR2 400 RAM is made specifically for use in computer systems with a 400MHz front-side bus. PC2-3200 refers to the module's bandwidth (the highest amount of data it can transfer per second), which is 3200MB/s or 3.2GB/s.

What the difference between DIMM and SO-DIMM?

SIMM is a single in-line memory unit. DIMM is actually a double SIMM and is a unit that has one or more memory chips on a small circuit board, plus pins used to create a connection to the motherboard. The biggest difference between DIMM and SO-DIMM is what each is used for. DIMM is used in servers and desktop computers and SO-DIMM units are used in notebook and laptop computers. DIMMs are twice the length of SO-DIMMs and can offer features not normally found on SO-DIMM, like ECC (error-correcting code).

What is a memory module?

Also called RAM chips, memory modules are used in reference to DIMM, SIMM, and SO-DIMM memory units. While several types of chips are available, they basically serve the same basic purpose, storing temporary information for the computer to use while it's in operation.