Why Correct Thermal Pads are Crucial for Your AORUS RTX 3090 MASTER
Thermal pads are indispensable for your graphics card's advanced cooling system. They effectively bridge the microscopic air gaps between heat-generating components—such as the numerous VRAM (Video Random Access Memory) chips on both the front and back of the PCB, and various "pads on the side" like VRMs (Voltage Regulator Modules) and MOSFETs—and the card's substantial heatsink and backplate assembly. This direct contact ensures efficient heat transfer, preventing these sensitive components from overheating under extreme load.
Using old, deteriorated, or incorrectly sized/thicknessed thermal pads on a card of this caliber can lead to significant problems:
- Increased Operating Temperatures: This can easily trigger thermal throttling, where the GPU intentionally reduces its clock speeds to prevent heat damage, directly nerfing its top-tier performance.
- Reduced Performance and Stability: You might experience lower frame rates, system crashes, or visual artifacts during demanding gaming sessions or intensive creative workloads.
- Shortened GPU Lifespan: Prolonged exposure to excessive heat can accelerate the wear and tear on electronic components, potentially reducing the overall lifespan of your flagship graphics card.
Replacing thermal pads with new, high-quality ones of the correct thicknesses is an important maintenance step to keep your AORUS RTX 3090 MASTER 24G performing at its absolute best.
Recommended Thermal Pad Sheets & Thicknesses for GIGABYTE AORUS GeForce RTX 3090 MASTER 24G
For the GIGABYTE AORUS GeForce RTX 3090 MASTER 24G, different thermal pad thicknesses and corresponding sheets are recommended for various sections of the card. You will purchase these sheets and then cut the individual pads to the specific sizes needed for each component.
VRAM (Front Side of PCB):
- Required Sheet: Use one (1) sheet of 85mm x 45mm x 2mm thermal pad.
- Individual pads for all VRAM modules on the front will need to be carefully measured and cut from this 2mm thick sheet.
VRAM (Back Side of PCB - Under Backplate):
- Required Sheet Options: You have a choice here, or may need to assess the gap on your specific card, as RTX 3090 back VRAM cooling is critical:
- One (1) sheet of 85mm x 45mm x 3mm thermal pad, OR
- One (1) sheet of 85mm x 45mm x 2.5mm thermal pad.
- Many users find 3mm provides strong contact for back VRAM on RTX 3090s, but 2.5mm might be suitable if the gap is tighter on your specific unit. Assess the existing pads or gap carefully during disassembly. Individual pads for the VRAM modules on the back will be cut from your chosen sheet.
"Pads on the side" (e.g., VRMs, MOSFETs, other components on the PCB):
- Required Sheets & Thicknesses: These components require a mix of 1mm AND 1.5mm thick thermal pads.
- You will need to purchase one (1) sheet of 85mm x 45mm x 1mm thermal pad material.
- You will also need to purchase one (1) sheet of 85mm x 45mm x 1.5mm thermal pad material.
- During disassembly, you will need to identify which specific "side" components require 1mm pads and which require 1.5mm pads, then measure and cut accordingly from the respective sheets.
Important Note on Specific Pad Dimensions (Length x Width): Specific length and width dimensions for each individual pad on the AORUS RTX 3090 MASTER are not provided in the source information. Therefore, users will need to meticulously measure all components that require thermal pads (VRAMs on front and back, and all "pads on the side") on their specific card during disassembly. This will allow you to determine the exact length and width to cut from your chosen thermal pad sheets of the appropriate thicknesses (1mm, 1.5mm, 2mm, and 2.5mm/3mm).
Why Choose Fehonda Thermal Pads?
When undertaking a thermal pad replacement for a flagship card like the AORUS RTX 3090 MASTER, especially with custom cutting from sheets of various thicknesses, the quality of the thermal pad material is crucial. Fehonda thermal pads are a recommended option due to several benefits:
- Premium Quality: Fehonda utilizes high-grade materials in their thermal pads, ensuring excellent thermal conductivity and durability for long-lasting, effective cooling under extreme loads.
- Enhanced Cooling: Specifically engineered to optimize heat transfer, these pads can help significantly reduce the operating temperatures of your GPU's critical components, especially the GDDR6X VRAM.
- Expertise: Fehonda specializes in thermal interface materials, offering products designed with an understanding of the cooling needs of modern, high-performance electronics.
- Versatile Solutions: Providing thermal pads in various thicknesses and common sheet sizes (like 85x45mm) offers the flexibility to custom-cut pads for a wide variety of GPUs and component layouts, essential for this card's varied requirements.
Tips for Replacing Your GPU Thermal Pads (Custom Cutting Required)
Replacing GPU thermal pads on a card like the AORUS RTX 3090 MASTER requires precision, care, and patience, particularly when you need to determine which "side" components require 1mm versus 1.5mm pads, and choose the best fit for the back VRAM. If you are not experienced with GPU disassembly, consider seeking professional assistance or meticulously following detailed video guides for your specific model.
- Preparation: Gather your tools: new Fehonda thermal pad sheets (one 85x45x1mm, one 85x45x1.5mm, one 85x45x2mm, and one 85x45x2.5mm or 85x45x3mm for back VRAM), a precision screwdriver set, a sharp craft knife or precision scissors for cutting pads, a ruler or digital calipers for measuring, non-metallic prying tools (optional), high-purity isopropyl alcohol (90%+), and lint-free cloths. An anti-static wrist strap is crucial.
- Disassembly & Identification/Measurement: Carefully disassemble your graphics card. This is a complex card, so proceed with caution.
- Front & Back VRAM: Measure the length and width of all VRAM chips for cutting from your 2mm (front) and chosen 2.5mm or 3mm (back) sheets. For back VRAM, carefully assess the gap and original pad thickness (if discernible) to make the best choice between 2.5mm and 3mm.
- Pads on the side: Carefully assess these components. You'll need to determine which ones require 1mm pads and which require 1.5mm pads, then measure their length and width.
- Remove Old Pads & Clean: Gently remove all old thermal pad material. Thoroughly clean the surfaces of the components and the heatsink/backplate contact points with isopropyl alcohol to remove any oily residue or debris. Ensure surfaces are completely dry before applying new pads.
- Cut New Pads: Based on your measurements and thickness determinations, carefully and precisely cut the new Fehonda thermal pads from the appropriate sheets. Aim for clean, straight cuts. The pads should cover the entire surface of the component.
- Apply New Pads: Remove the protective film from one side of a newly cut pad, apply it to the corresponding component (ensuring correct thickness is used), then remove the film from the other side just before reattaching the heatsink or backplate. Ensure good contact.
- Reapply GPU Thermal Paste: Since the heatsink is removed from the GPU die, you will also need to clean the old thermal paste from the GPU die and apply a fresh, even layer of new, high-quality thermal paste.
- Reassembly: Carefully reassemble your graphics card, ensuring even pressure when reattaching the heatsink and backplate. The AORUS MASTER series has substantial coolers; be methodical. Do not overtighten screws.
- Testing: Install the card back into your PC and monitor temperatures under load (e.g., using benchmarking software or demanding games) to verify the success of the replacement and ensure temperatures, especially VRAM junction temperatures, are stable and significantly improved.
Where to Purchase Fehonda Thermal Pads
For reliable, high-quality Fehonda thermal pad sheets suitable for your GIGABYTE AORUS GeForce RTX 3090 MASTER 24G, online marketplaces like AliExpress are a common source.
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Ensure you purchase the specified sheets: one 85x45x1mm, one 85x45x1.5mm, one 85x45x2mm, and one 85x45x3mm (or 85x45x2.5mm for the back VRAM, or both if you want to test fit) from a reputable seller to cover all the card's needs as detailed.
Conclusion: Maintain Your AORUS RTX 3090 MASTER's Extreme Cooling Performance
Proper thermal pad replacement for the front VRAM, back VRAM, and side components is paramount for maintaining the extreme performance, stability, and longevity of your GIGABYTE AORUS GeForce RTX 3090 MASTER 24G. By using high-quality Fehonda thermal pad sheets of the correct thicknesses (2mm for front VRAM; 2.5mm or 3mm for back VRAM; 1mm and 1.5mm for side pads as determined) and carefully measuring and cutting the individual pieces to fit your card's specific layout, you can significantly improve or restore your GPU's thermal performance. This ensures your top-tier graphics card remains cool under pressure, delivering the ultimate gaming and creative experiences.
