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We highlight VRM temperatures when using each cooler on our Gigabyte B550 Aorus Master motherboard with the overclocked Ryzen 9 5950X. Do note that the results are heavily influenced by the specific layout of the Gigabyte B550 Aorus Master test motherboard with respect to top-side or rear IO-side VRM components. So your findings may vary if you have a different motherboard VRM layout and heatsink design.
With that 40mm VRM cooling fan onboard, we were anticipating strong VRM cooling performance. But that is not what we really got.
Yes, the Arctic Liquid Freezer II 360 A-RGB delivers some of the strongest VRM thermal performance for our test data. However, the gains versus other AIOs are not as significant as we would have expected. And Arctic’s cooler is certainly no match for the VRM cooling potential of the ASUS ROG Ryujin II 360 and its bigger VRM fan.
Of course, this analysis is different when locked to 40dBA fan speed. Now, the Arctic cooler brushes to wrong side of 70C VRM temperature. But this is a notable improvement versus many of the other AIOs in our test data.
Is the VRM fan worth it based on this test data? Maybe, but not to a massive extent.
