admin desktops & Laptops Support Joined Dec 2, 2017 Messages 34,125 Apr 7, 2020 Thread Author #1 Lenovo E420 E520 LLW-1 LGG-1 Schematic, Bios Attachments Lenovo E420 E520 LLW-1_LGG-1.pdf Lenovo E420 E520 LLW-1_LGG-1.pdf 1.2 MB · Views: 4 ThinkPad_Edge_E520_420_525_425_8huj17us_NWL.zip ThinkPad_Edge_E520_420_525_425_8huj17us_NWL.zip 11.7 MB · Views: 4