System hangs when XMP enabled at 3200

[Floob]

Are you getting event 18/19 WHEA errors in event viewer?

Either way I'd still recomend going with the latest agesa 1.1.9.0 bios as it brings stability improvements.

There are Event ID 18 entries in the system log, but under information and not error.

After reading the comments about that beta BIOS update I am tempted, although there seems to be mixed reviews:
https://www.reddit.com/r/MSI_Gaming/comments/kmaldw/some_x570b550_update_to_1190/

 

[Floob]

Well, I've been running it all night on xmp 3200 now, it had a few apps open and downloading some games etc.. and its not thrown an error.
Not sure why it would be more stable now - luck?

I think I'll see how this goes and take it from there. Perhaps the next step would be to try that beta bios.

Thanks very much for everyones help so far - its definitely been an eye-opener.