If your buffalo has some abnormal hot legs while modding 1 bios and VDDC voltage equally, then think about those pins having dry thermal paste or degenerated glue (removed but still wet) loss of thermal conductivity).
Practical experience: I have 1 HIS 470 card heated 70 degrees C-100% auto fan after applying glue MX4 then reduced to 62 degrees C-65% auto fan. (much reduced because the fan to auto)
1. Choose the right thermal paste
On the market today there are 3 main types being used:
- Liquid metal thermal paste: This is the most advanced thermal grease in the market. This product has a metal composition in semi-liquid form, so it is difficult to use and the price is also very high, in return for excellent heat dissipation. Some salient advantages of this product line include:
+ Performance is always stable and maintained at a high level because it does not dry out.
+ Can be exposed to the external environment without fear of creating air bubbles.
+ The adhesion between the processor surface and heat sink is uniform and perfect, users don't have to worry about the glue being too thick or too thin.
Names of some products that users can: Coollaboratory Liquid Ultra, Indigo Extreme.
- High quality thermal glue: The glue is the most used glue on the market today, due to its moderate price and relatively high performance, and easy to use. A few notable advantages:
+ Reasonable price, only about 100-200 thousand VND / tube, each tube can use 15-20 times.
+ Relatively high performance, suitable for most of today's computer components, from low to high end.
Names of some outstanding products: Noctua NT-H1, Xigmatek Freezing Point or Arctic Cooling MX3 / 4.
You can find it here: https://goo.gl/ASxasU
- Cheap thermal paste: These types of glue are often sold with large capacity, very cheap price, are often used for office computers with low power consumption and heat generation capacity is not large. . These glues are mainly silicon based and do not have metal molecules, so the cooling effect is relatively low. So, with a GPU cooler for buffalo plows, you should forget this type
2. Implementation process
a. Remove the graphics card heatsink
Note: This process is not complicated, but requires the implementer to be patient, gentle, not hard-working because it is likely to cause damage to components, typically lead to chipping. GPU core.
Remove 4 fixed screws on the underside of the graphics card. For high-end graphics cards, the number of screws may be higher.
Users should pay attention to other places on the graphics card, because the screw fixed between the heat sink and the motherboard can be attached in other places on the graphics card.
On larger graphics cards, there are more screws than small graphics cards
After removing all the screws, secure the heat sink with one hand, firmly grasping the board with the other hand. After that, shake and lift gently, so that these two parts slowly disengage (absolutely do not get tugged or strengthened because it is easy to damage the core, AMD graphics card users should pay special attention to what this). The reason is that after removing the fixed screw, the two parts are still very tight together due to the fragments of the VRAM memory chip.
Thermal pads RAM (Thermal pad)
b. Clean the GPU surface
Old glue will dry out after a period of use and will form plaque on the GPU surface and heat sink. Users need to conduct cleaning or this glue will hinder the process of heat transfer.
Use an alcohol swab to gently wipe the surface of the GPU
Use a soft paper moistened with alcohol, or the cleaning solution that comes with thermal paste to gently wipe the GPU surface until the GPU is shiny. In addition, when buying a number of new radiator lines, users can use the cleaning cloth with the glue included in the radiator. This cloth is specially impregnated with oil to help users easily wipe off the dry glue layer.
This process needs to be done lightly, especially with graphics cards using AMD's Radeon chip because these GPUs do not have the protective cover like NVIDIA's GeForce series.
GPU after wiping off old glue
c. Apply new glue
This process is quite simple but greatly affects the performance of the heat sink. Too much glue will prevent contact between the two metal surfaces, but too little glue will make many gaps unsealed. What is needed is a thin and even layer of thermal paste on the GPU surface. Tests have shown that a small amount of glue, such as a toothpick tip, is sufficient.
Pump the glue onto the GPU
After pumping the glue onto the GPU, users only need to press the heat sink back into place and screw it in place. The pressure created by the radiator will spread the glue evenly between the two surfaces. Note that users should tighten the screws in a symmetrical way, instead of screwing in a circular motion to avoid glue being pushed to one side and channel heat dissipation.
Some radiators or creams come with a piece of plastic so you can spread the glue yourself, and you can also use your hands (but it's not recommended because sweat, dirt, and dirt are easily mixed into the glue.) thermal conductivity of the glue) or hard sim card, avoiding the glue to stick to the motherboard and GPU circuits. This method easily creates air bubbles if the operation is unfamiliar, thereby reducing the heat dissipation of the device. At the same time, when installing the heat sink, the pressure will cause the glue on the edge to overflow and stick to the circuits around the motherboard of the graphics card.
Refer to: Video tutorial on applying thermal paste to VGA 1080Tihttps://goo.gl/EXN48J
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According to FB Hoang Long
Translated by Blogtienao.com