Ah, so it was the BIOS update that clocked my RAM down from 6000Mhz. It also looks like I was right in waiting for a more permanent fix. The only positive in all this is that I can look forward to slightly increased performance sometime in the near future. What a shitshow, between melting GPU connectors and CPUs roasting itself and the MOBO to death, and a slew of games launching in record-breaking poor form on PC, I chose the perfect time for a new rig!