Hello, I'm sorry to hear that the issue is still present. Memory corruption is still the cause in some of your dumps, so I'd suggest you run a memory test overnight. Eight passes per stick, one stick at a time.
Test RAM With Memtest86+

There are also indications of some drivers being the cause, please run Driver Verifier for 24 hs to help us determine the cause:
Driver Verifier - BSOD related - Windows 10, 8.1, 8, 7 & Vista

Have you reinstalled OS after the motherboard replacement? Also, the PSU you have purchased is not very good. Don't get me wrong, it will do, but you should aim to get something higher quality when able.