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02-05-2020 01:27 AM
You surely meant i5-6400 to i7-6700.
Yes, that's entirely possible - just make sure you get normal, not -K version as the latter requires different heatsink assembly that you are unlikely will be able to get.
See similar threads about this:
https://h30434.www3.hp.com/t5/Gaming-Desktops/upgrading-from-I5-6400-to-I7-6700k/m-p/7329114
https://h30434.www3.hp.com/t5/Gaming-Desktops/CPU-change/m-p/7221786
02-06-2020 03:03 PM
Greetings,
Welcome to the forum.
I am not a HP employee.
HP has validated a i7-7700 on this MB. The MB has a H170 chipset so it should support a i7-6700.
It is hard to say if Intel gen 6 CPUs will work on this MB. I7-7000 series processors have been validated by HP.
Regards
02-07-2020 12:26 AM
Ouch! My (minor) mistake - first of all I should have checked that 870-224 is based on series 7 CPU.
https://support.hp.com/ph-en/product/omen-by-hp-870-200/13687063/model/15741160/document/c05389962
https://support.hp.com/ph-en/product/omen-by-hp-870-200/13687063/document/c05355651
Alas! The same principle as per information in my earlier links applies here in case you want to move from i5 to i7.
But as far as I'm concerned have to stay within the same generation of CPUs, i.e. series 7 - as per the information in the above links.