B550M-HDV BIOS question

Hello everyone, I want to ask about BIOS update for ASRock B550M-HDV.

Yesterday I bought ASRock B550M-HDV for replacing my old motherboard that has Ryzen 5 3400G in it. The motherboard BIOS version is P3.30 and it works well with my Ryzen 5 3400G.

According to the BIOS list, ASRock B550M-HDV latest BIOS is P3.90. Is it safe to update my ASRock B550M-HDV BIOS to the latest if I'm using Ryzen 5 3400G? I'm afraid if my PC won't boot after the update.

Thanks everyone.

You?™re absolutely right, normally ?œif it?™s not broken, don?™t fix it??is a good rule.

But in my case I decided to try updating anyway ??and just wanted to share my result.

I updated my ASRock B550M-HDV from P3.30 to P3.90 while using a Ryzen 5 3400G, and thankfully everything went smoothly. The system booted normally, no compatibility issues at all.

What surprised me is that performance actually improved. Before updating, some of my games felt like they had occasional micro-stutters. After updating to P3.90, gameplay feels noticeably smoother and more stable.

On BIOS P3.30:
- CPU OC can't be higher than 3.9 GHz
- iGPU OC from 1400 MHz ??1500 MHz would freeze when booting into Windows
- It was very sensitive and unstable when tuning the GFX clock

After updating to BIOS P3.90:
- CPU OC now can run at 4.0 GHz @1.35v
- iGPU can now run at 1500 MHz
- Stable with 1.150V GFX voltage
- No freezing during Windows boot
- System feels smoother overall (less micro-stutter in competitive games)

So in my case, the newer BIOS clearly improved stability and overclocking behavior ??especially for the iGPU. It seems like memory training / AGESA optimizations in the newer version made a real difference for Picasso APUs.

So yes ??while I agree updating isn?™t always necessary, in my situation it turned out to be beneficial.

Thanks again for the advice??!

Hello Xaltar, last night I just upgraded my R5 3400G and plug Intel Arc B580 GPU. Before I do the upgrade process, I used DDU to eliminate driver issues in the future. After that I turn off the PC and reset the bios using 2 pin jumper to make the BIOS in default state.

Everything works normally, the PC can boot to Windows 11 and I installed the Intel Arc B580 GPU driver. After that I want to Enable Secure Boot and I have disabled the CSM, make sure the BIOS mode is UEFI, and all of the partition is GPT.

When I save the settings and want to boot to Windows, It keeps sent me back to BIOS. But if I disable secure boot, my PC can boot to Windows 11 normally.

Do you know what causing that? I also noticed that my BIOS changed to version 3.30. I remembered that I posted the previous thread when I just upgraded the BIOS to version 3.90.

Thanks Xaltar, I hope I can resolve this issue.

I have never seen a BIOS revert to an older version on a board without dual BIOS.
That is very strange. On a board with dual BIOS (higher end boards) this can happen
because the secondary BIOS chip has an older BIOS on it for recovery purposes. It
should not happen in a single BIOS configuration like yours.

Make sure you didn't misread the BIOS version then if it is in fact reverted I would
update to the latest again before we look at secure boot as this will potentially
change secure boot behavior anyway.

Let me know how it goes, I am hoping it will also resolve the issue. Make sure to
reset to factory defaults and restart the system before you update.

Before you update maybe try clearing CMOS with the jumper first and see if it still
shows 3.30. If it does then go ahead and update.