Pattern to record: The system fails at the same early stage even with minimum known-good hardware.

Record the boot configuration

Use the motherboard model and revision, not just the PC case brand, to select firmware documentation. Record POST indicators and recently changed memory, graphics or storage before returning settings to a documented baseline. One possible explanation is that stored firmware code is incomplete or internally inconsistent.

Preserve recovery options

Firmware updates require the exact motherboard model and stable power. An interrupted or wrong firmware image can leave the board unbootable.

Firmware and hardware checks

1. Reduce to known hardware, inspect POST indications and compare saved settings with board documentation.
2. Use the board's supported recovery check and verify firmware integrity before writing anything.

Recovery and startup checks

If the checks support this cause, recover or reflash the exact signed firmware using stable power. Verification should cover cold start, restart, memory training, storage, expansion cards and saved settings.

For an assessment of your desktop computer, contact AEPC in Burswood or call 027 908 8880. Provide the model and the conditions that reproduce this problem. Workshop visits are by appointment.