Whenever an application is executed on a web 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 may encounter a situation where your Virtual Private Server has too little memory to run all the programs and freezes as a result, which means your websites will stop functioning effectively and that the site visitors shall start seeing error messages. To avoid such a scenario, you may take advantage of the RAM upgrade that we are offering and increase the amount of physical memory for your use without changing your entire plan. In this way, you may pay only for the system resources you actually need instead of for additional disk space or higher Processor speeds that you will not really use, for example. With the upgrade, you'll be able to ensure the sleek functioning of your websites, which also means a better experience for your website visitors.