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Thick or thin thermal pads?

afyeung
By afyeung
in Cooling
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I have the option between a 1mm or 0.5mm thermal pad to cool the VRM 1 on the 290X which has this heatsink on it http://www.newegg.com/Product/Product.aspx?Item=N82E16835426042 I'm using the fujipoly extreme http://www.amazon.com/Fujipoly-mod-smart-Extreme-Thermal/dp/B00ZSJPZQ2/ref=sr_1_1?ie=UTF8&qid=1462725665&sr=8-1&keywords=fujipoly Would thick or thin be better at dissipating heat? Thanks so much! 

Current PC: Origin Millennium- i7 5820K @4.0GHz | GTX 980Ti SLI | X99 Deluxe 

 

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Use the stock thickness

Thats that. If you need to get in touch chances are you can find someone that knows me that can get in touch.

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check how thick the one there currently is and use that thickness

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what ever thickness came with the card 

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Thermals pads do not dissipate heat - they conduct it.

 

So, in principle for best cooling thinner is better - the shorter the conduit from the heat source to the heat sink the better the transfer will be.

 

However, when there are uneven surfaces - like the varying height of multiple VRMs the last thing you want is a pad that does not make good contact between them and the sink plate, which explains the need for thicker pads - being somewhat compressible they help compensate for the variations.

 

So, whenever possible, go with the thinnest pads that you are confident will provide good contact on all necessary surfaces.

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  • 1 year later...

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