The more physical memory your VPS has, the more programs you'll be able to run at the same time. Some applications require a lot of RAM even if nothing else is running on the server, even though they may not require high CPU speeds or lots of disk space. If your web server runs out of memory, it'll stop responding and the Internet sites and the offline programs you host on it shall not perform properly, as their software components won't load since there will not be any free memory. In this light, we offer a RAM upgrade for our VPS packages, so if you discover that your server is close to the limit, you'll be able to take advantage of this upgrade without upgrading the whole plan and paying for system resources that you will not use. That way, you can ensure the proper functioning of your scripts and stop concerning that your site visitors shall see errors or will be unable to open your sites at all.