Computer Graphics Display Output: graphics board signal-path fault. Video cannot pass through a board trace, protection device or output circuit.

The distinguishing clue

Verified graphics hardware, display and cable do not restore the affected board output.

Checks before an assessment

Record the affected display, port, resolution and refresh rate. Compare a known cable and display if the connectors are sound; stop load tests if excessive heat accompanies artefacts.

Stop point: Stop high-load testing if artefacts are accompanied by excessive heat or burning smell.

Workshop confirmation and repair

Device-level check: Compare another cable and display, inspect temperatures and separate software from hardware rendering.

Targeted check: Trace the specific output's signal and control path with appropriate service information. If confirmed: Repair the confirmed board video path.

Repair boundary: Repair driver state or the confirmed graphics card, connector or board path.

Related cause to rule out

When video stays absent on the affected path despite correct cable, input and settings, also consider Computer Graphics Display Output: graphics output power fault before choosing a repair.

Checks after the work

After repair or replacement, check native resolution, multiple outputs, video playback, graphics load and restart.

For an AEPC repair assessment in East Auckland, provide the exact model and observed clue. Call 027 908 8880 before visiting the Burswood workshop.