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I understand you have performed some tests, could you please specify what tests you have performed and what their results were exactly?
Please check ASUS for BIOS updates.
Please check your SSD for firmware updates.
Please fill in your system specs
Please follow this tutorial
and download the tool. The tool will give you detailed information about your system specs, please fill in your system specs more completely including PSU, cooling & other used stuff. Please note that the PSU, cooling and other used stuff are NOT mentioned in the tool.
How to fill in your system specs: