: Bottom row, pins 3 and 4 (orientation does not matter). BIOS and Support Information Go to product viewer dialog for this item. Lenovo V520-15IKL Motherboard
Ensure you have the latest BIOS installed before swapping from a 6th Gen to a 7th Gen CPU. ib250mh motherboard manual
Sometimes you download the PDF, but the issue is hardware-based. Here are the top 5 user errors resolved by the manual’s technical specs. : Bottom row, pins 3 and 4 (orientation does not matter)