{"id":1038,"date":"2023-12-17T18:47:09","date_gmt":"2023-12-17T10:47:09","guid":{"rendered":"https:\/\/pcunboxing.com\/?p=1038"},"modified":"2023-12-17T19:08:37","modified_gmt":"2023-12-17T11:08:37","slug":"amd-ryzen-9-7950x","status":"publish","type":"post","link":"https:\/\/pcunboxing.com\/en\/amd-ryzen-9-7950x\/","title":{"rendered":"AMD Ryzen 9 7950X AM5 processor open-cover cooling performance test \/ air-cooled, integrated water-cooling, liquid metal and more"},"content":{"rendered":"

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AMD has always had a unique PBO (Precision Boost Overdrive) mechanism that makes it easier for the CPU to routinely exceed temperatures above 90\u00b0C under high loads. For those interested, you can google the principle of the PBO (Precision Boost Overdrive) mechanism. Without going into details, gamers who are more familiar with the related information should know that apart from the PBO mechanism of AMD AM5 series processors, there are also theories that it is due to the IHS (Integrated Heat Spreader) of the top cover and the TIM (Thermal Interface Material) of the inner layer, or the CCD (Cold Cold Chip) of the heat source of AMD CPUs. AMD CPU heat source CCD (Core Chiplet Die) position is obviously offset and not centered and so on, which further leads to poor heat conduction and heat dissipation under extreme conditions. Therefore, the author will use AM5 offset fasteners, CPU open cover + AM5 offset fasteners, CPU open cover + replacement of high-performance top cover and so on, to look at the different ways of heat dissipation. What is the difference in cooling performance of AMD Ryzen 9 7950X processor under PBO Auto setting?<\/p>\n

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Currently, the mainstream opinion on the Internet is that AMD processors have more serious heat buildup:<\/h3>\n
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  1. PBO (Precision Boost Overdrive) Mechanisms<\/li>\n
  2. CPU Top Cover IHS (Integrated Heat Spreader) Design and Thickness<\/li>\n
  3. CCD (Core Chiplet Die) Heat source position shifted southward<\/li>\n<\/ol>\n

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    In fact, this test theme is provided by a friend of mine, originally this friend aka \u932f\u5b57\u738b is want to run these test items, but he became a poor social animal this year to work overtime to not have their own life, so I was transferred to run this project, this post was developed by the settings and test items are specified by him, because he wanted to see these data.<\/p>\n

    Once again, a reminder! The action of uncovering the CPU processor \"100% is a human damage action and will absolutely lose the warranty\", it is not advocated, recommended, or recommended for anyone to uncover their CPU to avoid losing the product warranty.<\/p>\n

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    Table of Contents<\/p>\n