Ubuntu memtest86 how long

Here are the steps:. While booting press better hold down the Shift key to bring the grub menu that looks like the following image:.

As you can see there are some options to choose from this will vary from installation to insatllation , the one to look for is the third option in this screenshot i.

From the grub menu go to the appropriate option to select i. There is no certain rule that how many passes you would run but the more the better.

Here is an image taken from here showing that errors were encountered i. If your memory does not have any problem then you won't get any red portion. Press Enter. The test will run automatically, and continue until you end it by pressing the Escape key. Ubuntu Community Ask! Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group.

Create a free Team What is Teams? Learn more. Ask Question. Asked 6 years, 8 months ago. You have now successfully executed the memtest on your Ubuntu system. This is like a game to check if any errors are detected or if your system restarts.

It is recommended to run the memtest for many passes, because sometimes, an error might not be detected until a second pass. Each pass may take many hours or days to complete, depending on how much memory is installed on your system. So, it is recommended to run the memory test at the end of the day to obtain the best results. If your system has a large volume of memory and crashing is infrequent, then may be a good idea to run the test over the weekend. It will correct all errors on its own.

If you have the time to perform a second pass for error detection, in this case, we recommend that you do so. The memtester utility is not installed on the Ubuntu system by default. But, you can install the utility using the following command:. These programs are designed to load x86 CPUs as heavily as possible for the purposes of system testing. This may cause data loss filesystem corruption and possibly permanent damage to electronic components.

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