Just built new system around this MB with Ryzen9 7900x and 2x16GB of Kingston 6000MHZ, Cl 32 RAM. It fired up on first shot and works good and stable on standard settings but....
Bios is somewhat of disappointment,looks like some Legacy ones from last century.
MB came with BIOS version 1.24 which is well behind in time having only AGESA ComboAM5 1.0.0.7a.I was able to flash version 2.02 (using instructions for Instant Flash in BIOS) but that comes with AGESA ComboAM5 1.1.0.0. which was somewhat of trouble with Ryzen 5000 series until fixed with 1107(b)
There are 2 more, newer versions with that AGESA and vulnerability fixes but can't be even seen in BIOS let alone installed, they look different with some additions.
"Normal" ones that work look like this
B65MPRS2.02.ROM
Those that are not recognized are in format like this
B650PRS2.08.AS01.ROM
B650PRS2.06.AS03.ROM
B650PRS2.05.N09.ROM
and some earlier ones like this one
B65MPRS1.29.AS01.ROM
https://www.asrock.com/MB/AMD/B650M Pro RS/index.asp#BIOS
I tried renaming them but still not seen by InstantFlash. which is set same as ones that worked.
Bios is somewhat of disappointment,looks like some Legacy ones from last century.
MB came with BIOS version 1.24 which is well behind in time having only AGESA ComboAM5 1.0.0.7a.I was able to flash version 2.02 (using instructions for Instant Flash in BIOS) but that comes with AGESA ComboAM5 1.1.0.0. which was somewhat of trouble with Ryzen 5000 series until fixed with 1107(b)
There are 2 more, newer versions with that AGESA and vulnerability fixes but can't be even seen in BIOS let alone installed, they look different with some additions.
"Normal" ones that work look like this
B65MPRS2.02.ROM
Those that are not recognized are in format like this
B650PRS2.08.AS01.ROM
B650PRS2.06.AS03.ROM
B650PRS2.05.N09.ROM
and some earlier ones like this one
B65MPRS1.29.AS01.ROM
https://www.asrock.com/MB/AMD/B650M Pro RS/index.asp#BIOS
I tried renaming them but still not seen by InstantFlash. which is set same as ones that worked.