S3TurboTool is a BIOS modification tool for unlocking full Turbo Boost on Xeon E5 v3 processors on LGA 2011-3 motherboards.
The process includes:
– Removing the 06F2 CPU microcode from the BIOS using MMTool.
– Adjusting CPU C-State settings (Package C State limit to C2, C3 report enabled, C6 report disabled) with AMIBCP.
– Injecting the TBU driver into the BIOS using UEFITool (different methods for single and dual socket systems).
– Flashing the modified BIOS with tools like FPT, AFU, or a hardware programmer.
After flashing, the system may require a special boot procedure (disconnecting storage and resetting BIOS defaults) to fix a common UEFI boot issue on X99 platforms.
| S3TurboTool — Quick Specs | |
|---|---|
| Name | S3TurboTool |
| Purpose | Modify BIOS to unlock Xeon E5 v3 features on X99 motherboards |
| CPUs | Intel Xeon E5 v3 series (Haswell‑EP) |
| Chipset | Intel X99 |
| Mainboard Support | Chinese X99 boards (Huananzhi, Jingsha, Machinist, etc.) and select branded X99 models — check model list for 2025 updates |
| Key Features | BIOS backup, automated modification, flash the modified BIOS |
| Benefits | Unlock hidden features, access multipliers, possible performance gains (cooling and power matter) |
| Risk | Medium–High. Could brick a board or void warranty. Have recovery tools ready (USB flashback, SPI programmer). |
| Who should use it | Intermediate to advanced users who know BIOS flashing and recovery methods |
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