Whenever a program is executed on a hosting server, it's loaded into the physical memory. If you run a resource-demanding script, or if you simply add more scripts on your websites and you get lots of visitors, you could encounter a scenario where your Virtual Private Server has insufficient memory to run all the programs and freezes as a result, which means that your websites shall stop working adequately and that the visitors shall start seeing error messages. To avoid this kind of a scenario, you may take advantage of the RAM upgrade that we are offering and increase the amount of physical memory you can use without changing the entire plan. That way, you can pay only for the resources which you actually need instead of for additional disk space or higher Central processing unit speeds which you shall not really use, for instance. With the upgrade, you can ensure the sleek operation of your websites, which also means a better experience for your site visitors.