Whenever a program is executed on a hosting server, it's loaded into the physical memory. In the event that you run a resource-demanding script, or if you just add more scripts on your sites and you get lots of visitors, you may encounter a situation where your Virtual Private Server has not enough memory to run all the apps and freezes as a result, which means that your websites will stop working properly and that the visitors will 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 the whole plan. In this way, you could pay just for the resources you actually need rather than for additional disk space or higher CPU speeds that you won't really use, for instance. With the upgrade, you'll be able to guarantee the flawless performance of your websites, which also means a better experience for your website visitors.