dimm memtest

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    Each DIMM okay by itself, but not together

    The computer has two identical 8GB sticks of Apacer DDR4 (in an AsRock B250M). By themselves they pass all Memtest86 tests. When both are in the computer, they crash the machine. I tried to make a backup of the primary drive (as I always do) before starting to work on this box, booting from an...