HERO VIII CPU BIOS

[hankieroseman]

Wondering about this BIOS V 2311 for 5950X CPU. V 2311 How does it fit into the picture? Instructions say if you have a larger # BIOS to flash to 2311 which was a previous BIOS dated 10/20/2020. Currently at V 4902.

[AfterShock]

flashing to an older bios is never a good idea especially that far back, 4 years of security and performance fixes and features out the window on top of 4 years of memory compatibility.

[hankieroseman]

It's for the CPU NOT the motherboard.

[jeordiewhite]

When you have a bios version that add's support for a newer cpu model, later bios versions also include the same microcode to support it. 

All the information provided should point you to your logical conclusion. V 2311 dated 10/20/2020 and V 4902 dated 09/20/2024. Hint: One is larger than the other because it's much newer and contains updated agesa code, stability, and security fixes. 

I think AMD added support for the ryzen 5000 series in AMD AM4 AGESA V2 PI 1.1.0.0. Given that the bios is released in 10/20/2020 and the Ryzen 5000 series launched in 11/05/2020, it could be the first bios to support the 5000 series. 

To reiterate, the bios/eufi contains the AMD agesa firmware, the cpu doesn't get flashed, the motherboard does to update the new microcode. What you listed above are both the bios rom's. One is just very outdated and the first one to support the 5000 series. Going this far back is a very bad idea. I use 4902 and have no issues with it, everything runs stable. If you aren't having any issues, you shouldn't roll back. The last few updates are security fixes. 

Let's think of it this way, it lists the Agesa version. Agesa being the firmware/microcode to run the cpu and it lives in the bios rom file only. What you listed has: AMD AM4 AGESA V2 PI 1.1.0.0 PatchB and the latest bios has AMD AM4 AGESA ComboV2PI 1.2.0.Cc

Clearly you can read one is a bigger number. 

Lets take for example if you go down to a much older version, many of the bios updates list but aren't limited to:

Improve stability, improve system performance, improve memory performance, improve system compatibility.

What you will lose is - Fix USB connectivity issue. That issue was causing usb to randomly disconnect during operation. It was fixed in the microcode.

I don't know if I can make it any clearer that what you are saying is wrong and that sticking with the latest bios is your safest and best bet. While you are at it, update your AMD chipset drivers if you haven't already https://www.amd.com/en/support/downloads/drivers.html/chipsets/am4/x570.html

[AfterShock]

all that means is that your cpu has been supported since 2311, any version before that will make your pc unusable unless you use bios flashback

[hankieroseman]

Oh very well. I found it odd to say the least. Learn something new everyday. NO flashing back that's for sure. We are up to date and the Old Scalper 5950X is still fast as hell and in a pretty new case.LIAN-LI O11 Vision PCMR