The more physical memory your VPS has, the more programs you will be able to run at the same time. Some programs require lots of RAM even if nothing else is running on the web server, even though they may not demand high Central processing unit speeds or lots of disk space. In case your web server runs out of memory, it shall stop responding and the sites and the offline apps which you host on it will not perform properly, as their software components shall not load since there won't be any free memory. In this light, we offer a RAM upgrade for our VPS packages, therefore if you detect that your machine is close to the limit, you may make the most of this upgrade without upgrading the whole package and paying for resources which you won't use. This way, you can ensure the proper functioning of your scripts and stop concerning that your site visitors will see errors or will not be able to open your websites at all.