Whenever an application is executed on a hosting server, it is loaded into the physical memory. If you run a resource-demanding script, or if you just add more scripts on your websites and you get loads of visitors, you could encounter a scenario where your Virtual Private Server has too little memory to run all the apps and freezes as a result, which means your sites shall stop operating properly and that the website visitors shall start seeing error messages. To avoid this kind of a scenario, you can take advantage of the RAM upgrade that we're offering and increase the amount of physical memory for your use without changing your entire plan. This way, you'll be able to pay only for the system resources which you actually need rather than for additional disk space or higher Processor speeds that you shall not really use, for example. With the upgrade, you'll be able to ensure the flawless operation of your websites, which also means a better experience for your website visitors.