I got an Aptio UEFI Bios, U1b, from Gigabyte's GGTS for my P67A-UD3R-B3. However, there are two critical bugs in it: 1. PCIEX1 are not work with my USB3.0 PCIE card. 2. 4Pin Fans stop running at 0rpm, but 3Pin Fans work fine. I've just solved the PCIEX1 issue with MMTool by replacing the x1x4Switch module from previous Bios, U1a. But I don't know which module could possibly cause the 4Pin Fan problem. I've tried to flash my P67A-UD3R-B3 with "P67X-UD3R-B3 U1d" & "P67X-UD3-B3 U1b." Both Bios gave a working 4Pin Fan. Could "It8728SmmFeatures" possibly be the module that I'm looking for? These are the Bios: GA-P67A-UD3R-B3 - U1b GA-P67X-UD3-B3 - U1b GA-P67X-UD3R-B3 - U1d I'm really appreciative!