AMD BC-250 Mining Board / Local AI Accelerator
Unlocked 40/40 CUs • Patched BIOS • Verified for LLM Inference
Key Specifications & Features
- Unlocked Compute Units: Software core unlocker applied — full 40 / 40 CUs active and routed.
- BIOS Configuration: Pre-flashed with patched P3.00 Chipset Menu BIOS.
- Storage Compatibility: M.2 slot supports NVMe M.2 SSD or M.2 SATA III (2280 form factor). (No SSD included).
- Tested & Validated: Verified under Fedora 43 running llama.cpp (Vulkan build) with 9B and 12B LLM models.
Important Hardware & Shipping Notes
- CR2032 Battery: Due to carrier shipping regulations regarding standalone lithium coin cells, the CR2032 battery is NOT included. You will need to install your own battery upon arrival.
- Storage: No SSD/storage drive is included with this listing.
Unlockable Core Status (40 / 40 CUs)
The software core unlocker has been successfully applied to this unit. All 40 available Compute Units (CUs) are currently active and routed. The live dispatch table verifies that all WGP pairs are fully enabled across all shader engines and shader handlers.
Testing & Validation Process
Every unit undergoes practical validation prior to packaging:
- Flashed with custom P3.00 BIOS menu.
- Software core unlocker applied and verified via live CU manager.
- Validated on Fedora 43 using llama.cpp (Vulkan build) with 9B and 12B LLM models loaded for inference, saturating unified memory and producing coherent outputs.
*Note: Basic functionality and inference validation performed. No formal extended stress testing was performed.
Live Diagnostic Readout
Collected directly from the live BC-250 CU manager for this unit:
BC-250 CU Dashboard / Live Dispatch UMR : /usr/bin/umr UMR inst : 1 (auto) ASIC : cyan_skillfish.gfx1013 amdgpu : bc250_cc_write_mode=not exposed, active_cu_number=24 CPU : 12 threads present, 12 online; mask not probed (governor active) Service : enabled Boot sync : current table saved Source : SPI dispatch masks + amdgpu boot CU map Legend : D+ driver+routed, S+ SPI+routed, D! driver+off, -- off | Row | WGP0 | WGP1 | WGP2 | WGP3 | WGP4 | SPI | CC | CUs | | | 0-1 | 2-3 | 4-5 | 6-7 | 8-9 | | | | | SE0.SH0 | D+ | D+ | D+ | S+ | S+ | 0x1f | 0xffe00000 | 10/10 | | SE0.SH1 | D+ | D+ | D+ | S+ | S+ | 0x1f | 0xffe00000 | 10/10 | | SE1.SH0 | D+ | D+ | D+ | S+ | S+ | 0x1f | 0xffe00000 | 10/10 | | SE1.SH1 | D+ | D+ | D+ | S+ | S+ | 0x1f | 0xffe00000 | 10/10 | CUs active & routed : 40/40
