Laptop Memory Upgrades(cont....)

Fortunately, as RAM prices have dropped for traditional desktop machines over the past couple of years, so too have prices fallen for laptop memory. OEMPCWorld.com offers 512MB of DDR400 laptop memory for a cost of only approx $50, and one gigabyte of DDR400 laptop memory for a cost of only approx $105. For newer laptops, memory is even less expensive - often less then $40 for 512MB of DDR2-533 memory, and less then $80 for a gigabyte of DDR2-533 memory.

Finally, it isn't hard to upgrade your laptop with more RAM. While you will want to consult your manual to determine the exact process for your laptop, most machines provide access to at least one if not both of the memory sockets under a panel in the back. By simply unscrewing this panel, users can add more laptop memory to their notebook computer quickly and simply. Be sure to check your warranty information card to see if this action may impact your service agreement.

What types of laptop memory are available? We carry almost every type of memory for portable computers in existence, from 100-pin and 144-pin SDRAM for older laptops, ranging in size from 32MB to 512MB, to newer 200-pin DDR and DDR2 memory, from 256MB to 2GB per module.

What's the difference between DDR and DDR2 laptop RAM? Despite both being 200-pin memory, they are physically incompatible, and won't work in each other's sockets. DDR memory has a notch near one side of the RAM at the base, where the pins are. This 'keys' the RAM and makes sure that it can only be installed the correct way, preventing the RAM from being accidentally installed backwards. DDR2 also has a notch, but its is located nearer to the center of the RAM. These two different keys prevent DDR2 memory from being used with a DDR controller, where they would not communicate correctly, and vice versa.

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