Random BSOD after new motherboard and cpu

Checked 5 of your latest crash dumps, and they are all different.

Code:

BugCheck 50, {fffffa9003ed3040, 1, fffff80002acbdac, 5}


Could not read faulting driver name
Probably caused by : ntkrnlmp.exe ( nt! ?? ::FNODOBFM::`string'+43801 )
------------------------------------------------------------------------------
BugCheck 50, {fffffa90042b55b0, 0, fffff88002d8740c, 5}

***** Debugger could not find nt in module list, module list might be corrupt, error 0x80070057.

Probably caused by : Unknown_Image ( ANALYSIS_INCONCLUSIVE )
----------------------------------------------------------------------
BugCheck 3B, {c0000005, fffff880018ea149, fffff88007f74e60, 0}

Probably caused by : Npfs.SYS ( Npfs!NpFreeClientSecurityContext+d )
----------------------------------------------------------------------
BugCheck 24, {1904fb, fffff8800319a0a8, fffff88003199900, fffff80002a66773}

Probably caused by : ntkrnlmp.exe ( nt!RtlDeleteNoSplay+93 )
-----------------------------------------------------------------------
BugCheck 10E, {1f, fffff8a00c44be50, 0, 36ee8a}

Probably caused by : dxgmms1.sys ( dxgmms1!VIDMM_GLOBAL::CompleteBuildPagingBufferIteration+12b )

So versatility. It is possible that either the RAM or the board is bad. Test your RAM modules for possible errors.
How to Test and Diagnose RAM Issues with Memtest86+
Run memtest for at least 8 passes, preferably overnight.

If it start showing errors/red lines, stop testing. A single error is enough to determine that something is going bad there.

If memtest comes free from errors, RMA the board.

BTW, I guess you have performed a clean install after changing the board?