A:Answer Greetings from the Intel team. Thank you for your question.
Based on the HP 40L GT21-0014 product specifications, the Intel® Core™ i7-12700K is not listed as a processor upgrade supported by the motherboard.
These are some processors supported by the motherboard: Intel® Core™ i7-12700, i9-12900; for a whole list of supported processors, check the product specifications:
https://support.hp.com/us-en/document/ish_6054966-6055037-16
For detailed information about the Intel® Core™ i5-12400F processor, please visit:
https://ark.intel.com/content/www/us/en/ark/products/134587/intel-core-i5-12400f-processor-18m-cache-up-to-4-40-ghz.html
Thank you for choosing Intel! Emílio_Intel