Pattern to record: Cold boot loops before POST but may succeed after several attempts.

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 saved timing information no longer matches installed memory or current conditions.

Preserve recovery options

Firmware updates require the exact motherboard model and stable power. Increased voltage is not a safe substitute for compatibility.

Firmware and hardware checks

1. Reduce to known hardware, inspect POST indications and compare saved settings with board documentation.
2. Return memory settings to baseline and test supported modules individually.

Recovery and startup checks

If the checks support this cause, clear only the training data or replace incompatible memory after confirmation. 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.