How to Improve GPU Cooling Using Fiber Washers

Introduction

• The video details a cost-effective GPU modification using fiber washers to increase cooling efficiency.
• Originated from experimentation after repasting a GPU and realized that increasing the spring pressure on the GPU heatsink mounts could improve cooling.

Materials Needed

• Fiber washers (available in bulk)
• A precision Phillips screwdriver
• Optional: iFixit toolkit for convenience
• Thermal paste for repasting the GPU

Steps to Modifying the GPU

1. Disassembly:

   • Remove screws from the GPU while maintaining spring pressure.
   • If the thermal paste is dry, repaste the GPU first.

2. Washer Installation:

   • Place a fiber washer under each screw.
   • Re-secure screws in a cross-hatch pattern to maintain even pressure.
   • Ensure only one washer per screw to avoid uneven pressure.

Results and Testing Methodology

• Testing Environment: Conducted using 3D Mark and a controlled fan speed.
• Temperature Improvement:
  • Average temperature decreased by 5.9°C.
  • Maximum temperature decreased by 7.8°C.
  • Average hotspot temperature decreased by 7°C.
  • Maximum hotspot temperature decreased by 8.8°C.
• Performance Impact:
  • Minor increase in average core clocks by 9 MHz.
  • No change observed in maximum core clock.

Considerations and Recommendations

• Though temperature improvements are significant, performance gains are minimal.
• Results may vary with different GPUs.
• Repasting the GPU is advised for optimal outcomes.
• Safety Precautions:
  • Avoid using metal washers due to electrical conductivity.
  • Fiber washers should not exceed half a millimeter in thickness.
  • Avoid stacking washers to prevent inconsistent pressure and GPU damage.
• Not responsible for any potential damage incurred during alterations.

Conclusion

• This modification is a low-cost method to achieve better cooling.
• Primarily impacts temperature stability rather than performance.
• Could be more beneficial on higher-end GPUs.
• Feedback on personal results from attempting this modification is encouraged in the comments.

Additional Resources

• A link is provided for purchasing fiber washers.
• A previous video on GPU repasting is available for those interested.

Experimenting with this modification could lead to better cooling without significant investment.