Silent Hill f Not Using GPU & Crashing at 100% CPU Usage

Silent Hill f Not Using GPU & Crashing at 100% CPU Usage: How to FIX

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Silent Hill f Not Using GPU & Crashing at 100% CPU Usage: If you’re playing Silent Hill F (or a similar PC game) and notice that your CPU usage is pegged at or near 100% while your GPU usage is very low, followed by crashes, lag, or stutter, that means your system is misbalanced.

The GPU should be doing the heavy lifting for graphics, not the CPU. When the CPU is overloaded and the GPU isn’t being utilized properly, performance suffers dramatically, and crashes can happen. This guide will walk you through diagnosing and fixing the issue.

What Does It Mean When the Game Uses 100% CPU but Low GPU?

Before fixing, understand what this scenario looks like and why it happens:

  • CPU at or near 100% usage, often one or more cores maxed out.

  • GPU usage low (often single-digit or very low percentage) even when graphics settings are high.

  • System bottleneck: CPU might be doing tasks that should be offloaded (draw calls, physics, shaders, etc.)

  • Possibly wrong graphics device selected, or GPU is idle because it’s not given the job.

  • Overheating, wrong settings, driver issues, power plan, or game code inefficiencies.

Why This Problem Happens

Here are typical causes:

  1. Game running on integrated graphics instead of dedicated GPU (especially for laptops or desktops with both iGPU + dGPU).

  2. Outdated or corrupted GPU drivers.

  3. Incorrect Windows or GPU settings – e.g., game assigned to integrated GPU in graphics settings.

  4. Power plan or power saving limiting GPU / CPU performance.

  5. Background processes hogging CPU (e.g., overlays, anti-virus, streaming, other apps).

  6. Excessive draw calls or CPU-heavy graphics settings (shadow, physics, lighting) overburden CPU.

  7. Overheating causing thermal throttling of CPU or GPU.

  8. Faulty game installation or corrupted files.

  9. Insufficient or misconfigured RAM – slow RAM or wrong settings (e.g. XMP off).

  10. Game bug or poorly optimized engine – sometimes the issue is the game’s coding or engine.

Step-by-Step Fixes to Resolve the Issue

Here are steps to diagnose and fix “100% CPU & low GPU usage + crashes.” Try them in order; often the early steps resolve the issue.

1. Check and Force the Game to Use the Dedicated GPU

  • Windows Graphics Settings:

    • Open Settings → System → Display → Graphics settings.

    • Add the game’s executable (Silent Hill F .exe).

    • Click “Options” → Select High performance (this should map to your dedicated GPU).

    • Save and close.

  • GPU Control Panel (NVIDIA / AMD):

    • NVIDIA: Open NVIDIA Control Panel → Manage 3D settings → Program Settings → Add Silent Hill F → Set to “High-Performance NVIDIA GPU.”

    • AMD: Open Radeon Settings → System → Switchable Graphics → Assign Silent Hill F to “High Performance.”

This ensures that the dedicated GPU (not integrated graphics) is used.

2. Update GPU Drivers and Windows

  • Go to NVIDIA’s/AMD’s/Intel’s official website → download and install the latest drivers.

  • Clean installation often helps (options during driver install).

  • Also update Windows (Settings → Update & Security) to get fixes, patches, and performance improvements.

3. Change Power Plan to High Performance

  • Open Control Panel → Power Options → Choose “High Performance” plan.

  • If using a laptop, ensure it’s plugged in and not on a battery-saver mode.

  • In GPU control panel, set performance/power mode to “Prefer Maximum Performance” when running game.

4. Close Background Processes & Disable Overlays

  • Press Ctrl + Shift + Esc → Task Manager → Processes → End or disable unnecessary apps using high CPU (browser tabs, background apps, streaming tools).

  • Disable overlays: Discord overlay, Steam overlay, NVIDIA overlay, etc. They often cause extra CPU overhead.

  • Temporarily disable antivirus / security software to test if they are interfering.

5. Adjust Game Settings / Graphics Presets

  • Lower very CPU-intensive graphics options: shadows, draw distance, physics effects, etc.

  • Try setting the game to medium or low presets temporarily and see if GPU usage increases (meaning CPU can pass work to GPU).

  • Turn off any V-Sync or FPS cap (or set a moderate cap) to help reduce CPU waiting threads.

6. Enable Hardware-Accelerated GPU Scheduling (if available)

  • In Windows 10/11: Settings → System → Display → Graphics settings → toggle “Hardware-accelerated GPU scheduling” ON.

  • This can help reduce CPU overhead in some scenarios. It’s experimental – test to see if helps in your case.

7. Enable XMP / Check RAM Configuration and Speed

  • In BIOS, enable XMP (Intel) or DOCP (AMD) so that the RAM is running at its rated speed rather than default (often slow) speeds.

  • Ensure RAM modules are properly seated.

  • If using dual-channel configuration, ensure correct slots used. Bottlenecks from slow RAM can push work to CPU more than GPU if memory is slow.

8. Monitor Temperatures & Thermals

  • Use tools like MSI Afterburner, HWMonitor, or similar to check CPU & GPU temps under load.

  • If CPU is overheating, it may throttle and cause the GPU to be left idle.

  • Clean dust from case, ensure fans are working, ensure good airflow.

  • Reapply thermal paste if needed.

9. Reinstall Game / Verify Integrity of Game Files

  • If installed via Steam or similar, use “Verify integrity of game files” to check for corrupted files.

  • If problem persists, uninstall and reinstall to ensure clean installation.

10. Update DirectX / Visual C++ / Game Runtime Libraries

  • Sometimes missing or outdated Microsoft Visual C++ Redistributables (2015, 2017, 2019) cause problems.

  • Update DirectX via Microsoft’s site.

  • Ensure the game has latest patches from developer (sometimes performance patches are released).

11. Check Task Manager / Additional Tools to Diagnose

  • Use Task Manager to see if CPU is at 100% and GPU is near zero.

  • Use MSI Afterburner, GPU-Z, HWMonitor to get detailed GPU usage (sometimes Windows Task Manager underreports GPU usage).

  • Check if any single thread of CPU is maxed out – sometimes a single core is causing performance issue due to poor multithreading in game.

12. Update BIOS / Motherboard Drivers

  • On some motherboards, old BIOS can have inefficiencies or issues managing GPU/CPU interaction.

  • Updating BIOS and chipset drivers may improve performance.

13. Limit Frame Rate / Use FPS Cap

  • If GPU usage is low and CPU usage is high, sometimes capping frame rate (e.g., 60 FPS) reduces CPU overhead (less draw calls, less pressure).

  • Many games allow FPS cap; alternatively use GPU driver or third-party tools (RivaTuner) to cap.

14. If All Else Fails, Consider Hardware Upgrade

  • If your CPU is significantly older or weak compared to the GPU, it may simply be bottlenecked. Upgrading CPU can help.

  • Ensure GPU has enough VRAM and that PSU is sufficient.

  • Sometimes upgrading RAM (more capacity or faster RAM) helps too.

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Putting It All Together: Sample Troubleshooting Flow

Here’s how you might test these fixes systematically:

  1. Check Task Manager → note CPU vs GPU usage.

  2. Force game to use dGPU.

  3. Update drivers + Windows.

  4. Set power plan to High Performance.

  5. Disable overlays & background apps.

  6. Lower graphics / cap FPS.

  7. Monitor temps under load.

  8. Check RAM settings (enable XMP).

  9. Verify game files / reinstall if needed.

  10. If problem persists, consider upgrading CPU or other components.

FAQs

Q1: My CPU is at 100%, GPU at 5–10%. What’s wrong?

This likely means the game is using integrated graphics or the CPU is doing too many tasks that the GPU should handle (shadows, draw calls, physics). Force usage of the dedicated GPU and check graphics settings / driver settings.

Q2: How do I force Silent Hill F to use GPU instead of integrated graphics?

Use Windows Graphics settings to assign the .exe to “High performance” GPU, or use NVIDIA/AMD control panels to force dGPU for that specific game.

Q3: Will updating drivers alone fix the issue?

Often it helps, but if your system is misconfigured (power settings, RAM speed, improper GPU selection, etc.), you may still see poor performance even with new drivers.

Q4: Why does enabling XMP help?

XMP lets your RAM run at its rated speed rather than default slower JEDEC speed. Faster RAM allows better data flow between CPU, GPU, and system, reducing bottlenecks.

Q5: Can overheating cause crashes when CPU usage is 100%?

Yes. If the CPU gets too hot, it will throttle (reduce its speed) to cool down, which can cause stutters and crashes. Monitoring temperatures and ensuring good cooling helps.

Q6: Should I disable V‑Sync or cap FPS?

Capping FPS helps limit the load on the CPU and GPU. Disabling V-Sync can reduce input lag and potentially push GPU more, but sometimes V‑Sync causes waiting and extra CPU idle time. Experiment based on your setup.

Q7: What if Task Manager shows low GPU usage? Is it always accurate?

Not always. Windows Task Manager sometimes underreports GPU usage. Use dedicated tools like MSI Afterburner, GPU-Z, or built‑in monitoring to verify.

Q8: I have a strong GPU but an older CPU. Can that cause this issue?

Yes. If your CPU is old or weak in handling modern game logic (AI, physics, draw calls), it can bottleneck – meaning GPU sits idle waiting for CPU tasks. In such case, upgrading CPU helps.

Q9: Will reinstalling the game help?

It can, particularly if some game files are corrupted or patched incorrectly. After verifying other settings, reinstalling ensures clean assets and coding.

Q10: Does Windows Power Plan setting really matter?

Absolutely. If your system is in power-saving mode, CPU and GPU may be limited to conserve power. High Performance plan removes many restrictions and allows maximum usage.

Conclusion

Having Silent Hill F (or any PC game) crash while the CPU is at 100% and the GPU is barely used is a frustrating experience—but doing this nearly universal diagnosis and repair sequence will solve the problem in most cases. Usually, the issue is not one thing but a combination: GPU selection, driver updates, power settings, graphics options, and ensuring system cooling and RAM performance are working as intended.

Start with confirming that the dedicated GPU is being used, update drivers, set your power plan to high performance, disable background interference, adjust settings so the CPU isn’t overloaded, hatch out any bottlenecks (RAM speed, CPU core performance), and monitor temperatures.

If after all that the issue persists, then hardware limits may be the cause: a weak CPU, insufficient RAM, or overheating may be pushing the system beyond its stable operating limit. Upgrading the CPU or improving system cooling could be the final path to stable performance.

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