The more physical memory your Virtual Private Server has, the more programs you will be able to run concurrently. Some pieces of software require plenty of RAM even when nothing else is running on the server, even though they may not require high Processor speeds or lots of disk space. If your server runs out of memory, it'll stop responding and the websites and the offline apps that you host on it shall not work properly, 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 solutions, so if you notice that your web server is close to the limit, you could make the most of this upgrade without upgrading the whole plan and paying for resources that you won't use. This way, you can ensure the proper performance of your scripts and stop worrying that your site visitors will see errors or will not be able to open your websites at all.