If you have recently installed more RAM in your machine, check for this by removing the new chip and seeing if the problem goes away.
This video from HowStuffWorks will show you how to install RAM into your computer.
A common myth is that installing interleaved RAM will offer double the bandwidth.
However, at most the increase in bandwidth by installing interleaved RAM is roughly 5-10%.
Past that, however, installing RAM is a breeze.
And once you've opened up that laptop, how do you install RAM correctly?
Most of the time, installing RAM is a very simple and straightforward procedure.
When Dual Channel is an optional configuration, installing RAM in matched pairs speeds up the performance of certain applications.
Some manufacturers seal the case and request that the customer have an authorized technician install RAM.
"How to install memory - installing desktop and laptop memory RAM."