Driver verifier doesn't look to be active in the dump
I would ask that you try to reseat the memory in different slots.
I would also suggest to update the BIOS
0: kd> !verifier
fffff8011f0e37a0: Unable to get verifier list.
0: kd> !pte 000000000026f57a
PXE at FFFFF6FB7DBED000 PPE at FFFFF6FB7DA00000 PDE at FFFFF6FB40000008 PTE at FFFFF68000001378
contains 42D0000193359867 contains 0D900001A48DA867 contains 0B400001A47DC867 contains 0000000000000080
pfn 193359 ---DA--UWEV pfn 1a48da ---DA--UWEV pfn 1a47dc ---DA--UWEV not valid
Protect: 4 - ReadWrite