I have run prime95 already for ~2 hrs with cpu at stock settings and RAM at 1600 Mhz at rated settings - all worked fine. (Was running it to verify the TX3 was decent at cooling...and seems like it is. Idle temp is 31C and after 2 hrs, cpu temp only rose to 42C
If you want more testing I can run memtest overnight and get back with you tomorrow.
Appreciate the help