I noticed that the memory speed in Windows 8.1 x64 task manager read as 1333 after updating the BIOS to 1505 on my Formula VI. I remembered to update the BIOS memory settings with the XMP profile, after which the BIOS and AI Suite reflected the correct speed, which is 1866. I downgraded the BIOS back to 0614 (yea, it's old), and now task manager is correct. Any idea why 1505 breaks this?