ASUS has released this new version for a couple of X299 mobos (I have X299-Deluxe) recently. After upgrading from version 3006, massive issues began for me with this release.
Mobo wouldn't complete POST, stopping at Q-code '31' or 'BD', with 'Memory Detect' on OLED display. I thought I had killed it completely because flashback to previous 3006 and/or resetting CMOS wasn't helping at all. But that was partially my mistake - I was presssing MemOK! button rather than Clear CMOS 🙂 So in fact I wasn't resetting CMOS.
After having realized that and resetting CMOS settings properly, mobo booted up fine on BIOS 3105, allowed me to enter BIOS settings, make changes, save and exit. But then, on another POST attempt, it again stopped with 'BD' Q-code/'Memory Detect' message. It all happened on CPU (i7-7820X) and DRAM (G.Skill TridentZ RGB 4x8GB) that I have been using for past 3 years with no issues, on multiple BIOS releases... I also tried Corsair Vengeance RGB set, same thing. I also tried new i9-10920X, same thing. After a couple of attempts to resolve it, I gave up.
I then flashed back to 3006, reset CMOS settings and then everything returned to normal.
BIOS 3105 introduces new Intel CPU microcode (02006906 rather than 02000060 used in 3006) and I think it's may be the source of the issue.
Local ASUS customer support wasn't very helpful. Their advice was to try different memory set (which I already did) or send mobo back to purchese point for warranrty claim/RMA'ing to ASUS.
any card pci in pcie x16 except graphics cards will cause error code and system wont boot been testing this any bios after 2002 is strange
Asus Rampage VI Extreme / Intel I9-7940X / Corsair H115i Pro / CORSAIR Vengeance RGB Pro 32GB (4 x 8GB) 3000MHz / EVGA GeForce GTX 1080 Ti FTW3 ELITE GAMING BLACK Edition / 2x Samsung 970 Pro NMVe 1GB / 4x Samsung 850 PRO - 2TB / Asus ROG Swift PG348Q / Corsair AX 1500i / Thermaltake View 71 RGB PC Case /Win 10 PRO x64