Console Technician Unveils Innovative PS5 Pro Heatsink Design with Grooves to Prevent Solder Paste Leaks

Sony’s latest PlayStation 5 Pro introduces an intriguing twist in its heatsink design, flying somewhat under the radar until popular YouTube channel TronicsFix brought it to light. Unlike the usual smooth designs, the PS5 Pro’s heatsink displays a unique rectangular spiral texture.

In an enlightening video, TronicsFix suggests that this engineered surface modification aims to minimize the “dry spots” and surface corrosion often seen when liquid metal thermal interface materials (TIM) drift across the heatsink. The design not only seeks to enhance durability but also slightly increases the surface area for better thermal contact.

Anyone familiar with applying liquid metal is aware of its tendency to gather in pools and flow unpredictably, unlike more traditional thermal pastes. To manage this, setups using liquid metal often incorporate seals around the heatsink to prevent this conductive substance from leaking and wreaking havoc on your system.

TronicsFix raises another interesting point: the vertical positioning of PlayStation consoles might exacerbate the unwanted movement of liquid metal over time. With extensive experience in repairing and fine-tuning numerous PS5 units and other consoles, their insights are likely quite close to reality.

What’s fascinating is that Sony has opted for these rectangular spiral “grooves” right where the heatsink connects with the AMD APU, which challenges traditional cooling approaches. Usually, overclockers and enthusiasts work hard to ensure a flawlessly smooth surface for optimal heat transfer. However, with liquid metal changing the game, Sony’s decision likely comes from rigorous testing and a belief in the thermal benefits it offers.

Considering the PS5 Pro’s enhanced processing capabilities, particularly with its stronger GPU, these heatsink grooves likely play a role in preventing thermal throttling.

Although the PS5 Pro made its debut on the official stage in early September, it’s only recently hit the market shelves. Enthusiasts and experts continue to dissect the new model’s secrets, but most of its technical innovations were discussed during a live broadcast by lead architect Mark Cerny.