ASRock Z390 Extreme4 with default UEFI and Intel i9 9900K processor
ASRock Z390 Extreme4 with default UEFI and Intel i9 9900K processor
Your i9 9900k runs at 4.6 GHz when idle with ASRock Z390 Extreme 4 BIOS - that's normal. The default setting might be adjusted based on your system configuration or BIOS version. If you're unsure, check the BIOS menu for exact values or consult the manufacturer's documentation.