Whenever an app is executed on a web server, it is loaded into the physical memory. In case you run a resource-demanding script, or if you just add more scripts on your websites and you get a lot of visitors, you could encounter a situation where your Virtual Private Server has insufficient memory to run all the applications and freezes as a result, which means your sites shall stop working effectively and that the site visitors shall start seeing error messages. To avoid this sort of a scenario, you may take advantage of the RAM upgrade that we are offering and increase the amount of physical memory available without changing the entire plan. This way, you could pay just for the system resources you actually need rather than for additional disk space or higher Processor speeds which you won't really use, for instance. With the upgrade, you could ensure the faultless operation of your websites, which also means a better experience for your site visitors.