The more physical memory your VPS has, the more programs you will be able to run simultaneously. Some applications require plenty of RAM even if nothing else is running on the web server, even though they might not require high CPU speeds or a lot of disk space. In the event your web server runs out of memory, it will stop responding and the sites and the offline applications which you host on it shall not perform effectively, 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 Virtual private server plans, so if you discover that your machine is close to the limit, you'll be able to make the most of this upgrade without upgrading the whole package and paying for resources that you will not use. That way, you can guarantee 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.