The more physical memory your Virtual Private Server has, the more programs you will be able to run concurrently. Some pieces of software require a lot of RAM even when nothing else is running on the web server, even though they may not require high Processor speeds or plenty of disk space. In the event your web server runs out of memory, it shall stop responding and the sites and the offline apps which you host on it will not function effectively, as their software components will not load since there won't be any free memory. In this light, we offer a RAM upgrade for our Virtual private server packages, therefore if you detect that your server is close to the limit, you'll be able to make the most of this upgrade without upgrading the whole plan and paying for system resources that you will not use. That way, you could guarantee the proper performance of your scripts and stop stressing that your site visitors shall see errors or will not be able to open your Internet sites at all.