The more physical memory your Virtual Private Server has, the more programs you'll be able to run simultaneously. Some applications require plenty of RAM even when nothing else is running on the server, even though they may not require high CPU speeds or a lot of disk space. If your server runs out of memory, it'll stop responding and the Internet sites and the offline apps you host on it will not work effectively, as their software components will not load since there will not be any free memory. In this light, we offer a RAM upgrade for our VPS packages, so if you notice that your machine is close to the limit, you could take advantage of this upgrade without upgrading the whole package and paying for system resources which you won't use. This way, you could ensure the proper performance of your scripts and stop concerning that your visitors will see errors or will not be able to open your sites at all.