Asrock BC-250 Modded BIOS
Quote from Mrr Zed0 on December 25, 2025, 6:01 am4U12G BC-250 is a part of ASRock 4U12G BC-250 Mining Rig
based on broken PS5 APU, with 16GB GDDR6 ram (10+6)
current driver reddit (https://www.reddit.com/r/linux4noobs/comments/1bvdfi3/bc250_driver/)
modded mesa repo https://aur.archlinux.org/packages/amdonly-gaming-mesa-git
bios mod https://gitlab.com/TuxThePenguin0/bc250-bios/
Smokeless umaf, you can change RAM:VRAM ratio via UMA on BIOS v3.00+ chipset > gfx Config integrated graphics controller -> Forces UMA mode -> uma specified https://github.com/DavidS95/Smokeless_UMAF — but there is no need to use it.
also to flash bios just use flashrom under any os, its installed by default mostly.
sudo flashrom -p internal -r backup.bin
sudo flashrom -p internal -w newbios.bin
Collection of BIOS ROMs for the BC-250
BC250_3.00.ROM – Stock dump from a BC-250 running firmware P3.00 after a settings clear, may contain some data like EFI variables
BC250_3.00_CHIPSETMENU.ROM – Modded firmware with the chipset menu exposed and modified to allow access to NBIO Common Options. Based on BC250_3.00.ROM
Warning
Nothing in this repository is supported or has any kind of warranty. This is a dump of my work, it meets my standards for functionality but isn’t polished.
As always, before flashing anything TAKE BACKUPS.
_________________________________________
READ PDF FILE
REPLACE COMMAND WITH THIS FOR MODDED BIOS
AfuEfix64.efi BC250_3.00_CHIPSETMENU.ROM /p /b/ /n /k /x /ric:e
Download ZIP File From Here Or Github: https://github.com/MrrZed0/bc-250-bios
Video: https://youtu.be/1FuWU0PRUVU
#bc250 #bc-250 #asrockbc-250 #asrockbc250
4U12G BC-250 is a part of ASRock 4U12G BC-250 Mining Rig
based on broken PS5 APU, with 16GB GDDR6 ram (10+6)
current driver reddit (https://www.reddit.com/r/linux4noobs/comments/1bvdfi3/bc250_driver/)
modded mesa repo https://aur.archlinux.org/packages/amdonly-gaming-mesa-git
bios mod https://gitlab.com/TuxThePenguin0/bc250-bios/
Smokeless umaf, you can change RAM:VRAM ratio via UMA on BIOS v3.00+ chipset > gfx Config integrated graphics controller -> Forces UMA mode -> uma specified https://github.com/DavidS95/Smokeless_UMAF — but there is no need to use it.
also to flash bios just use flashrom under any os, its installed by default mostly.
sudo flashrom -p internal -r backup.bin
sudo flashrom -p internal -w newbios.bin
Collection of BIOS ROMs for the BC-250
BC250_3.00.ROM – Stock dump from a BC-250 running firmware P3.00 after a settings clear, may contain some data like EFI variables
BC250_3.00_CHIPSETMENU.ROM – Modded firmware with the chipset menu exposed and modified to allow access to NBIO Common Options. Based on BC250_3.00.ROM
Warning
Nothing in this repository is supported or has any kind of warranty. This is a dump of my work, it meets my standards for functionality but isn’t polished.
As always, before flashing anything TAKE BACKUPS.
_________________________________________
READ PDF FILE
REPLACE COMMAND WITH THIS FOR MODDED BIOS
AfuEfix64.efi BC250_3.00_CHIPSETMENU.ROM /p /b/ /n /k /x /ric:e
Download ZIP File From Here Or Github: https://github.com/MrrZed0/bc-250-bios
Video: https://youtu.be/1FuWU0PRUVU
#bc250 #bc-250 #asrockbc-250 #asrockbc250
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