What might be causing a video issue if the system checks out after the BIST?

A video issue persisting after a successful Built-In Self-Test (BIST) typically indicates a problem related to the display system rather than fundamental hardware issues like power or connectivity. When the BIST runs successfully, it suggests that the core components of the computer are functioning correctly, which includes the motherboard and the GPU.

Selecting the faulty LCD cable as a potential cause addresses a common physical connection problem between the motherboard and the display. If the LCD cable is damaged or improperly connected, it can lead to display issues such as no image or distorted visuals. This would explain why video issues arise even though the critical components pass their self-test.

Other potential issues, such as a faulty primary battery or external peripherals, might impede functionality, but they don't specifically target video output in the same way that a malfunctioning LCD cable does. A faulty internet connection generally wouldn't affect the display directly unless it involved specific online content that wouldn't load. Thus, focusing on the LCD cable is essential as it directly relates to the ability of the video system to transmit images correctly.