https://forums.tomshardware.com/threads/upgrading-dell-xps-15z-l511z-cpu-i7-2nd-gen-to-i7-3rd-gen-possible-help.1930755/
Upgrading Dell XPS 15Z (L511z) CPU i7 2nd Gen To i7 3rd Gen Possible ? HELP | Tom's Hardware Forum
Hi, I have a Dell XPS 15Z (L511z) with a 2nd gen i7 CPU. I want to upgrade it to a i7 3rd gen CPU. The laptop is currently running bios version A05 but...