Been having PC problems over the last couple of days. LinuxCNC PC randomly crashing after an hour or two. This has happened a few times in the past with this motherboard although I thought it was fixed after reseating all components. Long story short - don't rely on motherboard graphics adaptors (the LCNC website discusses this) and use a PCI or similar graphics card. Doesn't have to be very high performance but for some reason this gives much, much better latency figures. Also - make sure you update the BIOS before you start using the machine. I think that this is where my problems came from - old BIOS that didn't properly support a rather later cpu, even though it seemed to run OK.