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 Internet sites and you get plenty of visitors, you could encounter a scenario where your VPS has insufficient memory to run all the applications and freezes for that reason, which means that your websites will stop functioning correctly and that the site visitors will start seeing error messages. To avoid this type of a scenario, you may take advantage of the RAM upgrade that we're offering and increase the amount of physical memory you can use without changing the whole plan. In this way, you'll be able to pay only for the resources that you actually need rather than for additional disk space or higher CPU speeds that you shall not really use, for instance. With the upgrade, you could ensure the sleek operation of your Internet sites, which also means a better experience for your website visitors.