
Unlock Hidden Hashrate: Why You Should Flash Custom Firmware
Most miners take their Antminer S19 or S9 out of the box, plug it in, and run it on the factory settings. This is a mistake. Factory firmware is designed to be "safe" and generic, not optimized for your specific silicon chips.
Here is why switching to custom firmware (like Braiins OS+ or Vnish) is a game changer.
What is Autotuning?
Not all chips are created equal. On a single hashboard, some chips are high-quality winners that can handle high frequency, while others are weak.
- Stock Firmware: Treats all chips the same. It pushes the weak ones too hard (causing errors) and holds the strong ones back.
- Custom Firmware: Tests every single chip individually. It lowers the frequency on the weak chips and boosts the strong ones.
The Result: Better Efficiency (J/TH)
With autotuning, you can choose your strategy:
- Low Power Mode: Drop your wattage significantly while maintaining decent hashrate. Perfect for home miners with high electricity costs.
- Overclock Mode: Push the machine to the limit to get maximum BTC/day (ideal when BTC price is high).
Immersion Ready
If you are using oil cooling, stock firmware often fails because it panics when it doesn't detect fans. Custom firmware has dedicated "Immersion Modes" to handle this safely.
Note: Always download firmware from official sources to avoid malware. Once flashed, point your optimized rig to Gokby Pool to maximize those gains!