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Linux /
TestingMemoryThis is common to all Ubuntu installs (and those of many other Linux distributions), and can be useful if you want to see how much memory your computer has and ensuring that it's all OK. When the computer starts up, just after the brand logo disappears, a message will appear saying something like "Press ESC to enter the GRUB menu" with a two or three second countdown. If you press ESC quickly, you'll get a menu with a few options. One of these is "memtest86+". Selecting this will load a program that goes through and checks all the memory in your computer. Up the top, it gives a summary including information such as the speed of the memory and how much there is. This program will keep running forever, when it's finished testing, it'll just start over again. A complete pass can take over half an hour, however for a quick check, usually just giving it a few minutes is sufficient. As it progresses the bar beside 'Pass' will grow. When it reaches 100%, and starts again, it means the complete set of tests has finished. At any time you can press ESC to reboot the computer and start Ubuntu. The memtest86+ homepage contains a lot of information if you are interested in finding out more. |