If you’ve ever looked at your AMD Radeon card and thought, “I wish I could push this thing just a bit further,” then MorePowerTool is what you’ve been missing.
Created by Igor Wallossek and his team (yes, the folks behind Igor’sLAB), it’s a Windows utility that lets you access and modify the hidden power and voltage tables inside AMD GPU BIOS files.
It doesn’t replace your BIOS, and it doesn’t flash anything by itself — instead, it edits configuration tables stored in the Windows registry or a BIOS file, depending on how deep you want to go.
The result: control over power limits, clock ceilings, voltages, fan curves, and a lot of the stuff AMD’s official WattMan keeps locked away.
Technical Overview
| Attribute | Detail |
|————|———|
| Platform | Windows |
| Purpose | Modify power, voltage, and frequency limits of AMD GPUs |
| Interface | Graphical (advanced but intuitive) |
| Supported GPUs | AMD Radeon RX 5000, 6000, and some 7000 series cards |
| Main Features | Edit power/voltage tables, change TDC/PPT limits, adjust fan or clock profiles |
| License | Freeware (developed by Igor’sLAB) |
| Risk Level | Medium to High — misuse can cause instability or overheating |
| Best Use Case | GPU optimization, undervolting, and advanced overclocking control |
What It’s Like to Use
At first glance, MorePowerTool looks technical — dozens of sliders, tables, and numeric fields. But once you understand what’s what, it’s surprisingly straightforward.
You load your GPU BIOS or select your card from the list, and instantly you see all the parameters that WattMan doesn’t show: power limits, temperature targets, memory timings, and voltage caps.
The changes don’t apply automatically — you export the modified configuration, then use SoftPowerPlayTable (SPPT) injection or a BIOS mod to make them active.
It’s powerful, flexible, and a bit dangerous if you just start clicking things. But in the right hands, it turns AMD cards into fully tunable machines.
Typical Workflow
1. Download MorePowerTool from the official Igor’sLAB website.
2. Run it as Administrator.
3. Load your GPU BIOS or select the detected GPU from the dropdown.
4. Adjust parameters like Power Limit, Max Voltage, or Fan Curve.
5. Save the changes as an SPPT file or write them directly to the registry.
6. Reboot or reload the GPU driver for changes to take effect.
7. Use tools like Radeon Software or MSI Afterburner to monitor behavior.
Where It’s Useful
– Removing artificial power and voltage limits set by default BIOS profiles.
– Undervolting GPUs to reduce temperature and noise.
– Allowing higher clock speeds without BIOS flashing.
– Custom-tuning fan behavior for quieter cooling.
– Testing different power configurations for benchmarking.
Important Warnings
– Increasing power or voltage values too far can damage your card.
– Always monitor GPU temperatures and VRM readings after changes.
– Some driver updates may reset SPPT values — keep backups.
– Don’t mix profiles between different GPU models.
– For permanent changes, a BIOS mod is needed — use at your own risk.
– Warranty coverage usually doesn’t include registry or SPPT modifications.
