17KB,First time tweaking BIOS setting and I need help. : r/overclocking,i5 9400f gets only 3800 ghz at boost instead of 3900 ghz : r/intel,Review on CPU Intel Core i5-9400F LGA1151 BOX – Tiny Reviews,i5 9400f gets only 3800 ghz at boost instead of 3900 ghz : r/intel