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The IS-60 has no backplate included. My 90-degree kit includes a 3D-printed one though. In combination with the 90-degree adapter, I wasn't able to get better thermals (3950X in Eco-Mode), but I was able to squeeze out 100Mhz more in Prime95 than without the backplate/90-degree combo. Hope this helps!Also, the IS-60 EVO is a beast of a cooler. I was able to only get about 3.3Ghz at best in Prime95 on my IS-60. I just got a sample for the IS-60 EVO and I can maintain 3.6Ghz on my 3950X with that cooler. It can get very loud though so maybe swapping out fans would make the noise levels better.
The IS-60 has no backplate included. My 90-degree kit includes a 3D-printed one though. In combination with the 90-degree adapter, I wasn't able to get better thermals (3950X in Eco-Mode), but I was able to squeeze out 100Mhz more in Prime95 than without the backplate/90-degree combo. Hope this helps!
Also, the IS-60 EVO is a beast of a cooler. I was able to only get about 3.3Ghz at best in Prime95 on my IS-60. I just got a sample for the IS-60 EVO and I can maintain 3.6Ghz on my 3950X with that cooler. It can get very loud though so maybe swapping out fans would make the noise levels better.
