Autotuning 24.3: 25% Better Energy Efficiency on S19 Series
Autotuning 24.3 is now live for all Antminer S19 series and Whatsminer M50 devices. This release introduces per-chip dynamic frequency scaling, native Stratum V2 telemetry, and an automated low-power curtailment profile.
Release Highlights at a Glance
Efficiency Boost
Up to 25%
Down to 24.2 J/TH on S19 Pro
Network Protocol
Stratum V2
Encrypted, 80% less bandwidth
Silicon Safety
Zero Overvolt
Independent chip-level thermal limits
What's New in Version 24.3
1. Per-Chip Dynamic Undervolting
Instead of running every ASIC chip on a hashboard at a uniform target voltage, Autotuning 24.3 samples individual silicon binning quality in real time. Weaker chips are automatically undervolted and throttled, while resilient chips maintain peak throughput without overheating.
- ✓ Prevents single-chip thermal runaway errors
- ✓ Extends hashboard longevity across summer heat waves
- ✓ Saves 200W–450W per rig at identical hashrate
2. Stratum V2 as Default Protocol
All mining sessions now establish Stratum V2 encrypted tunnels directly to pool endpoints. This eliminates man-in-the-middle hashrate hijacking, shrinks telemetry bandwidth consumption by over 80%, and enables native Job Negotiation.
3. Automated Curtailment & Low Power Mode
When power grid prices spike, firmware can automatically drop into Low Power Mode via API webhook or internal scheduler, bringing power draw down to as low as 1850W while remaining fully connected and hashing.
Hardware Benchmark Targets
Tested in Hashline benchmark laboratories at 25°C ambient air intake:
| ASIC Model | Stock Specs | 24.3 Autotuned | Efficiency Gain |
|---|---|---|---|
| Antminer S19 (95T) | 95 TH/s @ 3250W (34.2 J/TH) | 108 TH/s @ 3000W | +22.4% |
| Antminer S19 Pro (110T) | 110 TH/s @ 3250W (29.5 J/TH) | 126 TH/s @ 3050W | +25.1% |
| Antminer S19 XP (140T) | 140 TH/s @ 3010W (21.5 J/TH) | 158 TH/s @ 2880W | +18.6% |
| Whatsminer M50S (126T) | 126 TH/s @ 3276W (26.0 J/TH) | 138 TH/s @ 3010W | +19.2% |
Download Packages
Cryptographically signed by Hashline Core Security Key.
SHA-256: e4b87c29...3f18a2
Need Bulk Farm Deployment?
Use our command-line farm toolbox to flash hundreds of miners concurrently across IP subnets in under 5 minutes.
Request Enterprise Assistance >