Heatsink pressure issue discovered with some AMD Ryzen motherboard backplates

Posted on Wednesday, Mar 01 2017 @ 14:08 CET by Thomas De Maesschalck
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While testing AMD's new Ryzen processor, a Tom's Hardware reviewer discovered that the backplates that are included with motherboards of some major brands pose a heatsink pressure problem.

The reviewer writes that these boards ship with screws that are too long. The screws reach their safety stop too soon, which results in inadequate pressure on the heatspreader of the CPU:
According to our sources, AMD has provided the location of the fastening screws, but not the height of the screw holders. Sinks that use the backplate supplied with the motherboard could pose problems, especially those that have a compatibility kit.
Processor coolers that use their own backplates should not pose a problem but cooling solutions and upgrade kits that use the backplate supplied with the motherboard could run into issues. It's nothing that a couple of washers can't fix but if you're going to build a Ryzen system I would pay attention to this, to ensure your processor gets the cooling it needs and can use eXtended Frequency Range (XFR).
In a statement an AMD representative said: “Our cooler works well and we have shared the platform design guide with NDA partners that includes the clamping force required to correctly mount coolers on the AM4 platform.”
AMD AM4 heatsink pressure issue

About the Author

Thomas De Maesschalck

Thomas has been messing with computer since early childhood and firmly believes the Internet is the best thing since sliced bread. Enjoys playing with new tech, is fascinated by science, and passionate about financial markets. When not behind a computer, he can be found with running shoes on or lifting heavy weights in the weight room.

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