Recently, a fault report appeared in overseas communities: When the Apple MacBook Pro equipped with the M5 Max chip performed high-load tasks such as large language model (LLM) inference, the screen experienced rare regional color distortion.According to the overseas community user's description, the abnormal color cast appears in the display above the interface area of the fuselage, and this phenomenon has nothing to do with the opening and closing angle of the screen - whether it is a 90-degree standard angle or a fully unfolded state, the degree of distortion does not change.
This feature eliminates the common possibility of panel damage caused by hot air backflow, and prefers that the heat accumulated in the chip inside the fuselage is directly conducted or radiated to the LCD module through the metal frame, causing thermal degeneration of the display layer.This model is currently equipped with only a single heat pipe and two low-profile fans. When faced with sustained high computing power output, the heat removal efficiency is obviously insufficient.
althoughThe M5 Max chip uses Fusion architecture, which integrates the CPU and GPU cores on the same chip to improve energy efficiency and reduce heat generation. However, under extreme load, the chip surface temperature can still exceed 100 degrees Celsius.
Since Apple promoted its self-developed chip strategy in 2020, MacBook Pro's thermal design power consumption control has long relied on traditional modules with a single heat pipe and dual fans.
As the transistor size and computing power density of the M5 Max chip continue to increase, this heat-removing architecture has gradually reached the performance ceiling.
Since this fault is still an isolated case, it has not yet triggered Apple’s official technical investigation. However, supply chain sources pointed out that the next-generation M6 MacBook Pro will comprehensively reconstruct the heat dissipation design, abandon the existing heat pipe solution, and instead introduce a VC vapor chamber structure, and may use high thermal conductivity interface materials such as PTM7950 to improve heat dissipation efficiency.
For users who have purchased the AppleCare+ service plan, applying for complete machine replacement through official after-sales channels is currently the most direct and effective solution.