The more physical memory your VPS has, the more programs you will be able to run concurrently. Some programs require lots of RAM even when nothing else is running on the server, even though they might not require high Central processing unit speeds or loads of disk space. In the event your web server runs out of memory, it will stop responding and the Internet sites and the offline apps that you host on it won't work properly, as their software components won't load since there won't be any free memory. In this light, we offer a RAM upgrade for our Virtual private server solutions, thus if you discover that your machine is close to the limit, you can make the most of this upgrade without upgrading the whole package and paying for resources that you will not use. That way, you could guarantee the proper performance of your scripts and stop stressing that your website visitors will see errors or will be unable to open your Internet sites at all.