aluminum CPU cooler coldplates for thermal performance. Liquid coolers are a good benchmark for this – first off, it's hard to find both an alloy and copper model of an otherwise identical cooler, but they also offer such great cooling efficiency that materials come under question.īenchmarking two similar liquid coolers against one another, this article looks at copper vs. Today, our test is to determine whether copper is still necessary in a coldplate when using highly efficient cooling solutions. The difference emerges in the details: Liquid coolers use microfins on the unseen side of the coldplate, where water is propelled through channeling and circulated to a radiator, where standard radiator design takes over. Liquid coolers are identical in this aspect – a cold plate is mounted to the IHS, heat is conducted through TIM and into the coldplate, and then the cooler whisks the heat away. This thermalpaste fills the imperfections without it, air would remain trapped between the IHS and coldplate, where it would ultimately increase temperature of the CPU. We illustrated this previously in a graphic: Thermalpaste (TIM) is used as an interface between the coldplate and the CPU's integrated heat-spreader (IHS), where it fills microscopic imperfections in the surface of the IHS to facilitate improved heat transfer to the CPU cooler's coldplate.
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