Seemingly random BSODs following mobo replacement

I got this computer in November. It worked for a few months, then it basically became a brick. I RMA'd it and they replaced the motherboard. I believe they replaced it with the same model but I'm not 100% sure (I really hope they did or else they should have reinstalled Windows as far as I know).
I've had it back for maybe a week and during that time I've had three blue screens. Two were kernel in page errors both referencing Ntfs.sys. They were both triggered when I plugged in a peripheral. I ran chkdsk but it didn't find anything major and I also ran SFC and it found no issues. The third and most recent was an ACPI driver internal BSOD. It had no obvious cause.
I'd be very thankful for any help that can be offered. I had to wait something like 3-4 weeks for the manufacturer to replace the mobo and send it back and at this point I really just want it to work.

Bump (sorry if this is unnecessary, I don't know if there's a queue or not).

Got a new blue screen today, again with no apparent source of provocation. This one was System Service Exception (bccode 3b). Would really appreciate help with this.