New AM5 BIOS updates now available

Thanks brother! I?™ve already tried two Ryzen 9 9700X CPUs, and both ended up with the exact same result.

The current CPU I?™m using can run DDR5 16G?2 at 8400 C34 with tight timings and pass all stability tests on another motherboard, and it can even boot at 8600 MT/s (maybe 8800 too). So right now I?™m not sure if it?™s still an IMC limitation of the CPU, a motherboard compatibility issue, or just some BIOS settings/ODT configurations that I haven?™t nailed down yet. I?™ll keep experimenting further.

Appreciate the help!

Video and photo:
https://drive.google.com/drive/folders/16Z132HFweaXrygJH4KnkHwe78OsvymyM?usp=sharing

CPU: 9700X AMD64 Family 26 Model 68 Stepping 0
RAM: FPM5GM9505 (KingBank Dark Star Blade DDR5 UDIMM 6800MHz Dark Heatsink (Hynix M-die C32) 2x24 ?? (@6000, manual timings ZenTimings_Screenshot.png)
MB: ASRock B850 Pro RS
Video: Nvidia 4070
Power: Be Quiet! Pure Power 12 850W Atx 3.1 80Plus Gold (Bp004Eu)
Age: 9600X - ~7 month. 9700x ~4 month.


First, my 9600X stopped working. I put the PC into sleep mode before bed, and in the morning it wouldn't turn on again, with a CPU post code. I tried a lot of things, including FlashBack and clearing the CMOS, but nothing helped.

I bought a 9700X, installed it, and everything worked right away.

Later, BIOS 4.03 came out, and I updated it via FLASH INSTANT, but the PC wouldn't boot; it had a black screen and froze on the CPU.

I spent three hours trying to get it to work (swapping memory, clearing CMOS, and trying to flash version 4.03 via FlashBack. Sometimes, after clearing CMOS, an image would randomly appear. I could even enter the BIOS or even start the system booting. But then everything would freeze, display random errors, or just freeze).


I was very upset because I thought the 9700X was broken too.
But then I decided to try reverting BIOS back to 3.40 via FlashBack, and lo and behold, everything worked correctly right away. The first boot was slow (about 40 seconds), but then everything worked fine.

Then version 4.07.AS01 was released, and I didn't install it.

Today I saw that version 4.10 was released and decided I should try installing
it.

And I ended up having exactly the same problems as before, only the system booted intermittently.


Immediately after the update, the system froze on DRAM. I powered it off and back on. Same thing. I powered it off, cleared the CMOS, powered it on, and the image appeared. I was even able to enter the BIOS, clicked "Load EFI Defaults," and when I exited, I clicked "Save," after which the system froze.


Powering it on again results in a black screen and CPU (it's completely unclear where it is, because the first two lights are on at the same time).


I've tried many options. Immediately after clearing the CMOS, the system boots, passes all POST codes, but then randomly it either freezes on the boot screen, or sometimes it starts loading but immediately crashes with the ACPI_BIOS_ERROR 0xA5 error. After the freeze and a second reboot (with a power outage), everything freezes on the white VGA LED. This continues until I clear the CMOS.


I also tried re-flashing 4.10 using FlashBack, with the same result. Sometimes I can enter the BIOS after flashing, but sometimes I get a black screen.


As soon as I flash 3.40 via FlashBack, everything starts working correctly.


I tried flashing 3.40, resetting the settings, saving, and then entering the BIOS again to flash 4.10. It still freezes on boot after flashing 4.10 (or it enters the BIOS but freezes when trying to save the BIOS settings).


I don't know what to do anymore; I have no warranty :( And there are no service centers in my country.

Video and photo:
https://drive.google.com/drive/folders/16Z132HFweaXrygJH4KnkHwe78OsvymyM?usp=sharing