Laptop Owners Face "PS5 Syndrome": Liquid Metal Thermal Paste Caused Issues After Two Motherboard Replacements

Laptops are increasingly expensive. With recent price hikes in components like RAM, users are more inclined to protect their existing devices and ensure repairs are effective. One gamer experienced significant trouble with a laptop purchased a few years ago. Despite two motherboard replacements under warranty, the device continued to malfunction. It wasn't until the second motherboard swap that the user investigated further and discovered the issue: a problematic application of liquid metal thermal paste that had spilled.

The current prices for new laptops can be discouraging. A configuration with 32GB of RAM and a mid-to-high-end graphics card easily exceeds 1,200 euros. While not top-tier performance, such a machine generally promises several years of gaming. If you bought a laptop some time ago, its value increases, and you'd naturally want to avoid costly replacements.

Motherboard Swaps Failed to Resolve the Problem; Liquid Metal Was the Cause

Identifying the root cause is crucial when a PC or laptop stops working. A Reddit user shared their experience with a gaming laptop bought in 2022. The manufacturer replaced the motherboard twice under warranty. However, the laptop failed again shortly after the first replacement and again after the second. Unsure of what else to do, the user opened the laptop and found that the thermal paste, which was liquid metal, had poor contact.

This suspicion arose when the laptop hit temperatures of 105°C, triggering shutdowns. While liquid metal isn't typically the source of such problems, in this instance, high temperatures caused the metal to heat up and potentially shift during movement. This was exacerbated by a lack of protective barriers around the chips to prevent such displacement.

Phase-Change Pads Solved High Temperatures and Shutdowns

The laptop showed signs of overheating and burnt chips, yet it remained functional. The user opted for a solution: replacing the liquid metal with 0.2mm thick Honeywell PTM7950 phase-change pads. These pads are solid at room temperature, preventing movement. When temperatures rise, they transition to a semi-fluid state, effectively filling the gap between the heatsink and the chip. This change significantly improves cooling and is a much safer alternative to liquid metal.