I am about to install a new i7 Ivy Bridge CPU and I am wondering whether it would make any sense at all to replace the thermal paste that is pre-applied on the stock cooler. There are three stripes of slightly malleable gray material, which I expect will spread over the CPU when the heatsink assembly is pressed on.
That said, I have a tube of Xilence X5 laying around and I am considering replacing the stock paste with it. According to a couple of reviews, the X5 seems decent enough – it is not the best thermal conductor around, but there are several other products that are far worse. What I do not know, of course, is how the stock cooler paste rates against the X5 and the other after-market products.
Now, I am not planning on seriously overclocking the CPU on the stock cooler – most probably nothing past the common trick of pushing all cores to their individual TurboBoost maximum frequency. On the other hand, where I live we often have room temperatures of 35C in the summer – the PC case will be very well ventilated, but that is still a quite high starting temperature.
So my question is two-fold:
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Would it make sense to replace the stock thermal paste with the Xilence X5? If the X5 is even slightly better, I am willing to go into the trouble…
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If so, would 100% pure alcohol (the same kind that is used in drinks) work for removing the stock paste from the cooler? Or do I need a more powerful solvent?
Best Answer
I don't think it makes any sense to replace the stock thermal paste. At most, it would make a two degree difference. And the stock thermal paste comes perfectly applied.
100% pure alcohol works well to purify the surface after removing the thermal paste. You can also use it to remove the thermal paste itself. If you use anything else to remove the bulk of the paste (like Windex or citrus cleaner), use alcohol to remove any cleaning residue. Don't scuff the surface by rubbing and make sure there's as little "tinting" (discoloration due to residue) of the surface as possible when you're done.