How To Add RAM To Your Computer for a Faster PC , If your replacing your RAM in your computer here is a step by step guide on how to do it.

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How To Add Memory/Ram To Your Computer

Bulking up your computer’s memory remains one of the most popular upgrade projects: It’s inexpensive, it’s relatively easy, and it can dramatically improve performance. And today’s memory-hungry software can make upgrading your PC’s RAM a virtual necessity. For example, Microsoft recommends at least 128MB of memory for Windows XP; 256MB is better, however, and 512MB is better still.

Most desktop PCs built over the past few years use dual inline memory modules. PC100 (100-MHz) and PC133 (133-MHz) SDRAM DIMMs are most common for Pentium-based PCs built one to three years ago; systems of that vintage based on AMD processors often use PC1600 (200-MHz) or PC2100 (266-MHz) double data rate modules.

Recently, faster DDR modules have become the standard for both Pentium- and AMD-based systems. The most prevalent type is PC2700 (333 MHz), and PCs that use PC3200 (400-MHz) DDR memory are starting to appear. Some high-end computers use dual-channel DDR memory for extra speed. Rambus memory is still available as well. High-performance Pentium 4-based systems often use more-expensive Rambus inline memory modules. Older machines typically have 800-MHz RIMMs, while new systems use 1066-MHz modules.

The Top Down

Benefits: Increase system performance, keep more applications open, and improve graphics and video editing.

Cost: 128MB, $25 to $35; 256MB, $40 to $60; 512MB, $80 to $120 (Prices were averages at press time. Check with your dealer for the latest.)

Tools required: Phillips screwdriver, antistatic wrist strap (recommended)

Expertise level: Intermediate

Time required: 15 minutes

Vendors: Corsair ( www.corsairmemory.com ), Crucial Technology ( www.crucial.com ), Kingston Technology ( www.kingston.com ), Mushkin ( www.mushkin.com ), PNY Technologies ( www.pny.com ), SimpleTech ( www.simpletech.com ), Viking InterWorks ( www.vikinginterworks.com )

Find the Correct DIMM

Memory modules may look virtually identical, but they’re not interchangeable. To ensure you’re using the correct RAM, check the Web sites of the makers listed in ” The Top Down .” Most have instructions for finding RAM that will match your PC’s.

From within any version of Windows, right-click My Computer and select Properties . The dialog box displays the amount of RAM at the bottom. Many PCs also show the total amount of RAM as they start up.

Turn off your PC, unplug it from the wall, and open the case. We suggest wearing an antistatic wrist strap when you work inside your computer. The RAM slots are usually located near the CPU, but closer to the front of the case.

If all your RAM slots are filled, you’ll need to remove some of the old modules. Two clips hold each DIMM in its socket. Push down on the clips to open them, rock the modules gently, and lift them straight out of the slots.

Note the notches on your DIMMs–they ensure that the modules can be inserted only one way. Put new DIMMs in the lowest-numbered empty slots first. Carefully press them straight down into the slots, applying gradually increasing pressure. The clips will snap into place when the DIMMs are fully inserted.

Plug in your PC, turn it on, and see if it recognizes the new RAM. If not, or if your PC won’t start, turn it off, unplug it, and make sure each DIMM is firmly seated. If you had to remove cables to get at the RAM, make sure they’re reconnected. If you still have problems, call your memory vendor’s tech support line.