Guest cdf Posted November 7, 2021 Posted November 7, 2021 Introduction The racing fan bug is a well known issue that affects certain cMP systems with upgraded video cards, particularly systems with SMC version 1.39f5. On these systems the PCI, PS, and booster fans spin abnormally fast at idle, causing unnecessary noise. Although the issue appears to be related to PCI power draw and the SMC, the exact cause remains unknown. With many users upgrading their video cards for Metal support, the fan bug is undoubtedly claiming more and more... Read more Source: MacRumors
Recommended Posts