The more physical memory your VPS has, the more apps you will be able to run at the same time. Some pieces of software require lots of RAM even when nothing else is running on the hosting server, even though they may not require high Processor speeds or loads of disk space. In the event your server runs out of memory, it will stop responding and the websites and the offline applications that you host on it won't 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 Virtual private server packages, so if you notice that your hosting server is close to the limit, you'll be able to take advantage of this upgrade without upgrading the whole plan and paying for resources which you won't use. In this way, you can ensure the proper performance of your scripts and stop worrying that your visitors will see errors or will not be able to open your sites at all.