Michael D. Setzer II via users composed on 2023-01-16 03:11 (UTC+1000):
Where exactly did you get the mt83x64.efi file? did a quick search, and didn't find a link.
Took it off the free .iso download.
Another issue is latest 6.01 is dated 12/30/2022, while you file is dated 11/22/2019? Don't know how the tests between the to options are.
I have no RAM newer than the file, so no incentive to find newer.
Will have to do some more searching. Also, your file is much larger than the combined two memtest programs and they are both legacy and uefi.
memtest86 has more functionality than merely displaying RAM testing on screen. :)