Overclocking means running your Bitaxe's ASIC chip at higher frequencies and voltages than stock settings. This increases hashrate but also increases:
Temperature can jump 10-20°C
Can exceed PSU capacity
Reduced lifespan possible
Make sure you have everything needed for safe overclocking:
These are the two key settings that control your Bitaxe's performance:
The amount of electrical power fed to the ASIC chip. Higher voltage allows higher frequencies but generates more heat.
How fast the ASIC chip operates. Higher frequency = more hashes per second = more hashrate.
Follow this step-by-step process to safely overclock without damaging your device:
Write down current voltage, frequency, hashrate, and temperature
Increase voltage by 25-50mV, frequency by 25 MHz at a time
Apply settings and restart the device
Watch temperature, hashrate stability, and share rejection rate
If stable and temp <78°C, go back to step 2. If unstable, reduce settings
Once you find your limit, run for 24 hours to confirm long-term stability
The Gamma uses Bitmain's BM1366 chip (same as Antminer S19 XP). Here are proven safe overclock profiles:
| Profile | Voltage | Frequency | Hashrate | Temp | Power |
|---|---|---|---|---|---|
| Stock | 1200 mV | 525 MHz | 1.20 TH/s | ~60°C | ~30W |
| Conservative | 1250 mV | 575 MHz | 1.32 TH/s | ~68°C | ~35W |
| Moderate | 1280 mV | 600 MHz | 1.37 TH/s | ~72°C | ~38W |
| Aggressive | 1300 mV | 625 MHz | 1.43 TH/s | ~75°C | ~42W |
| Extreme | 1350 mV | 650 MHz | 1.48 TH/s | ~82°C | ~48W |
| Dangerous | 1400 mV+ | 700 MHz+ | 1.60+ TH/s | 90°C+ | 55W+ |
The Supra uses the newer BM1368 chip (from Antminer S21). It's more efficient but also more sensitive to voltage changes.
| Profile | Voltage | Frequency | Hashrate | Temp |
|---|---|---|---|---|
| Stock | 1150 mV | 490 MHz | 600 GH/s | ~55°C |
| Light OC | 1200 mV | 525 MHz | 650 GH/s | ~62°C |
| Medium OC | 1250 mV | 550 MHz | 690 GH/s | ~70°C |
Proper cooling is THE most important factor in successful overclocking. Here's what you need:
How to know if your overclock is actually stable:
Over 24 hours of continuous operation
No sudden drops or fluctuations >5%
Check your pool's website for your worker stats
Device should stay connected continuously
Not maxed out trying to compensate for heat
Cause: Voltage too low for the frequency, or settings corrupted
Solution:
Cause: ASIC producing invalid hashes due to instability
Solution:
Cause: Thermal throttling or chip hitting power limits
Solution:
Overclocking is fun, educational, and can squeeze more performance from your Bitaxe. But remember: