Tekken 8: 'Polaris-Win64-Shipping' Crash - Solution Diagnosis

⚠️ SAFETY WARNING. Incorrect intervention on PC hardware components can lead to electrostatic discharge risks or void component warranties. It is recommended not to proceed with physical operations without the necessary technical expertise. ReeFix provides this diagnosis solely for educational and informational purposes.

REQUIRED TOOLS

To complete the diagnosis and resolve the crash, have the following tools ready (software and hardware):

• Software Utilities (Free): DDU (Display Driver Uninstaller), HWinfo64, OCCT, MemTest86.
• Noctua NT-H1 thermal paste (required in case of CPU/GPU overheating).
• Test Components (optional, for hardware exclusion):
• Corsair Vengeance DDR5 RAM
• Corsair RM750x Modular Power Supply

If you experience a sudden PC shutdown under load without blue screens, the power supply might be going into protection due to transient power spikes. In these cases, testing the system with a Corsair RM750x will help you understand if the old power supply can no longer handle the GPU's power demand.

• Samsung 990 Pro NVMe M.2 SSD

PHASE 1:

Root Cause Analysis and Fault Localization

The "Polaris-Win64-Shipping" crash indicates an unexpected interruption of the Tekken 8 executable based on Unreal Engine 5. This is not a simple software bug, but a calculation instability caused by the critical interaction between CPU, GPU, and RAM under load.

Fault Probability Matrix:

| Probable Cause | Probability | Main Symptom | | :--- | :--- | :--- | | CPU Instability (BIOS Voltages / Incorrect power limits) | 45% (High) | The crash occurs during initial shader compilation or match loading. It particularly affects 13th and 14th generation Intel Core i7/i9 CPUs. | | Video Driver or VRAM Instability (TDR Error) | 30% (Medium) | Temporary screen freeze followed by the crash. Windows Event Viewer reports the error nvlddmkm or amdkmdap (ID 4101). | | RAM XMP/EXPO Profile Instability | 15% (Low-Medium) | Random in-game crashes occasionally accompanied by blue screens (BSOD). | | Corrupted game files or software conflicts | 10% (Low) | Systematic crash at startup or at specific menu points. |

It often happens when: Motherboards apply automatic power profiles without current limits (unlimited PL1/PL2). Under Unreal Engine 5, the CPU demands instantaneous voltage spikes (Vcore) that lead to calculation data corruption and the subsequent shutdown of the executable.

PHASE 2:

Sequential Resolution Protocol

Perform the steps in the order shown to isolate and resolve the anomaly:

1. Verify Integrity and Cache:
   • Go to Steam -> Tekken 8 Properties -> Installed Files -> Verify integrity of game files.
   • Clear the DirectX shader cache using the Windows Disk Cleanup utility, and empty the %LOCALAPPDATA%\NVIDIA\DXCache folder (or AMD equivalent).
2. BIOS Alignment (Crucial for Intel 13th/14th Gen CPU):
   • Access the BIOS/UEFI and update to the latest available version (which integrates the 0x129/0x12B corrective microcodes).
   • Set the power profile to Intel Default Settings (or activate AMD Eco Mode).
   • Temporarily disable the XMP or EXPO profile to force the RAM to base JEDEC frequencies.
3. Graphics Driver Cleanse:
   • Uninstall current video drivers using DDU in Safe Mode.
   • Install the latest stable WHQL driver version provided by the GPU manufacturer.

Common Mistakes to Avoid:

• Continuously reinstalling the game without first correcting the voltage parameters in the BIOS.
• Increasing the GPU clock frequency (overclocking) thinking it will improve performance, which instead worsens stability in DirectX 12.

FINAL VERIFICATION

1. Instrumental Stress Test: Run a combined test on OCCT (power and 3D section) for at least 15 minutes while monitoring temperatures with HWinfo64. If the junction temperature exceeds 95°C, consider reapplying Noctua NT-H1 thermal paste.
2. Field Test: Launch Tekken 8, select a heavy stage (e.g., Arena), and verify stability for 3 consecutive matches.

Economic Evaluation Report:

| Type of Intervention | Estimated Cost | Notes | | :--- | :--- | :--- | | Self-repair (Software/BIOS) | €0 | Resolution via BIOS update, DDU, and factory settings. | | Professional technical intervention | €30 - €60 | Advanced diagnostics, BIOS calibration, and stability testing under load. | | Component replacement | Variable | Only necessary in case of physical degradation of RAM, CPU, or Power Supply. |

Note for the Technician (Diagnostic Handoff):

"The system exhibits systematic 'Polaris-Win64-Shipping' crashes (Unreal Engine 5). Verification of CPU Vcore voltages under AVX2 load, application of Intel Default current limits in the BIOS, and RAM stability testing via MemTest86 are requested to rule out physical degradation of the modules or memory controller."

Operational decision: If the crash persists after applying power limits in the BIOS and reinstalling drivers with DDU -> hand over the PC to a technician to test the physical stability of the RAM and power supply; otherwise, the problem is resolved on the software side.