I had to do this on my busted ddr4 2 weeks ago. Badram didn’t work, but memmap did. I had to do bit flipping to get the translation from BADRAM as explained here.

I think the latest memtest86+ has the option to report in memmap format. But you will need to take a photo of the screen, coz it’s Foss and not as fancy as Passmarks memtest.

Edit: Adding badram to grub broke grub for me, I have to undo the grub config using a live boot rescue thingamajig. Then I went hunting why.

‘Some assembly required’

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