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Memtest86+

Memtest86+ is a small tool that allows you to test memory for issues.

1. Obtaining media

rTechSupport Rescue Media

Our rescue media has Memtest86+ built in, as a boot option.

Download

Source files for Debian build

Official media

You may also use the official Memtest86+ ISO, or the install tool for Windows.

2. Creating bootable media

This will require a USB that is at least the size of the ISO you downloaded.

Follow the Linux media guide to create the install media. If you use Rufus, make sure to select MBR/Legacy/BIOS even if your system supports GPT/UEFI.

Run Memtest86+

Both of these media need to be booted in Legacy/CSM mode. They will not work when loaded in UEFI mode

rTechsupport Rescue Media

If you booted the rTechSupport Rescue Media then you will be able to choose Memtest86+ on the welcome screen.

memtest.png

Official Memtest86+ media

If you used the official Memtest86+ media, it will boot straight into the test.

3. Results

Let the test run for 8 passes, which will most likely last overnight. Any errors means you have a bad RAM stick or DIMM (RAM slot). If you see any errors early, you can end the test there and start narrowing it down to which stick/slot.

If you have a failure, then test each stick individually, and in different slots to isolate the failure to a stick or slot.