How to optimize RTX 4070 Ti Super for Alephium? (Overclock Guide)

Core Clock and Memory Tuning Strategy

1. Set base clock offset to +120 MHz using MSI Afterburner or GPU Tweak III.

2. Apply memory clock offset of +1400 MHz while monitoring GDDR6X thermal headroom.

3. Disable GPU Boost behavior to enforce consistent frequency during Alephium DAG generation cycles.

4. Lock power limit at 108% to sustain elevated clocks without thermal throttling under continuous hash workload.

5. Confirm stability with 30-minute Alephium miner stress test using official Rust-based node client.

Thermal Management for Sustained Hash Rates

1. Replace default thermal pads on VRAM and VRM with 12W/mK graphite-infused pads for improved heat transfer.

2. Adjust fan curve to maintain GPU core below 68°C and memory junction under 92°C during mining sessions.

3. Install PCIe slot riser with active cooling if ambient case temperature exceeds 32°C.

4. Use open-air test bench configuration during initial overclock validation to isolate airflow variables.

5. Monitor VRM temperature via HWiNFO64 sensor readings; sustained values above 105°C indicate insufficient phase regulation.

Power Delivery and Voltage Optimization

1. Reduce GPU core voltage by -75 mV in 15 mV increments until instability occurs, then revert one step.

2. Avoid modifying memory voltage directly; GDDR6X modules respond better to timing adjustments than VDDQ scaling.

3. Enable GPU Power Limit Override in BIOS if motherboard supports PCIe power delivery fine-tuning.

4. Verify 12V rail ripple remains under 50mV RMS using oscilloscope measurement at PCIe connector pins.

5. Cross-check power draw consistency across three consecutive 10-minute intervals using Kill-A-Watt meter data.

Firmware and Driver Configuration

1. Flash custom VBIOS supporting unlocked power target registers, verified against ASUS ProArt and iGame Ultra W OC variants.

2. Install NVIDIA Game Ready Driver version 535.98 or later, confirmed compatible with Alephium v1.4.3 consensus layer.

3. Disable Windows Hardware-accelerated GPU scheduling in Graphics Settings to prevent context switching interference.

4. Set NVIDIA Control Panel 3D settings to “Prefer Maximum Performance” and disable all RTX features including DLSS and Reflex.

5. Configure nvidia-smi persistence mode on and compute mode to “Default” before launching Alephium miner daemon.

Hash Rate Validation and Benchmarking

1. Run alephium-miner benchmark with --benchmark-mode=full for 15 minutes to capture steady-state hashrate variance.

2. Record average hashrate over final five minutes: typical stable range for RTX 4070 Ti SUPER is 128–134 MH/s.

3. Log rejected share count; values exceeding 0.8% indicate memory timing misalignment or signal integrity issues.

4. Compare DAG build time against reference value of 4.2 seconds; delays beyond 5.1 seconds suggest memory controller saturation.

5. Capture GPU utilization metrics using nvidia-ml-py; target 97–99% sustained usage without periodic dips below 92%.

Frequently Asked Questions

Q: Does enablingResizable BAR improve Alephium mining performance on RTX 4070 Ti SUPER?Resizing BAR offers no measurable benefit for Alephium's DAG access pattern. The algorithm uses sequential memory sweeps unaffected by PCIe address space expansion.

Q: Can I use the same overclock profile for both Alephium and Ethereum Classic mining?No. ETC relies on Ethash which demands higher memory bandwidth but lower compute intensity. Alephium’s Alephium-Hash requires balanced CUDA occupancy and memory latency tuning.

Q: Is it safe to run RTX 4070 Ti SUPER at 100% utilization for 72 hours straight during Alephium testnet participation?Yes, provided VRAM junction temperature stays below 95°C and VRM stays under 108°C. ASUS ROG Strix and iGame Ultra W OC models have demonstrated 168-hour continuous stability under those constraints.

Q: Why does Alephium miner report inconsistent hashrate when using ASUS GPU Tweak III profiles?GPU Tweak III applies dynamic clock modulation based on thermal thresholds. Alephium requires static clock domains. Use nvidia-settings CLI commands instead to lock frequencies.