# GPU BIOS Collection

A collection of GPU BIOS ROM files and tools for extracting/flashing them.

## Extracting GPU BIOS on Linux (AMD)

### Prerequisites

- Root/sudo access
- `amdvbflash` (included in `bin/`)

### Steps

1. **Identify your GPU adapter index:**

   ```bash
   sudo ./bin/amdvbflash -i
   ```

   This lists all detected AMD GPUs with their adapter numbers (e.g., `0`, `1`, etc.).

2. **Extract (save) the BIOS to a ROM file:**

   ```bash
   sudo ./bin/amdvbflash -s 0 output.rom
   ```

   Replace `0` with your adapter number from step 1, and `output.rom` with your desired filename.

3. **Verify the saved file:**

   ```bash
   ls -la output.rom
   ```

   A valid ROM file is typically 256KB-512KB for most AMD GPUs.

### Notes

- `amdvbflash` must be run as root (`sudo`).
- The tool supports AMD Radeon GPUs. For NVIDIA GPUs, use `nvflash` instead.
- Always save a backup of your stock BIOS before flashing any modifications.
- The included `amdvbflash` binary is v4.71 for Linux x86_64.

### Quick Reference

| Command | Description |
|---|---|
| `sudo ./bin/amdvbflash -i` | List detected AMD GPUs |
| `sudo ./bin/amdvbflash -s <adapter> <file.rom>` | Save BIOS to file |
| `sudo ./bin/amdvbflash -p <adapter> <file.rom>` | Flash BIOS from file |

## Files

- `bin/amdvbflash` - AMD VBIOS flash tool v4.71 (Linux), downloaded from [TechPowerUp](https://www.techpowerup.com/download/ati-atiflash/)
- `amd-rx5600xt.rom` - AMD RX 5600 XT BIOS dump