The more physical memory your VPS has, the more applications you will be able to run concurrently. Some applications require lots of RAM even if nothing else is running on the web server, even though they might not demand high Central processing unit speeds or loads of disk space. If your server runs out of memory, it will stop responding and the Internet sites and the offline apps you host on it won't function 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 Virtual private server packages, so if you detect that your server is close to the limit, you could take full advantage of this upgrade without upgrading the whole plan and paying for system resources that you won't use. That way, you'll be able to ensure the proper operation of your scripts and stop concerning that your visitors shall see errors or will not be able to open your websites at all.