For additional help, check out the Lenovo Thinkpad Edge E545 Troubleshooting page.
Background and Identification
The laptop had a very thick body with the brand name "Thinkpad" on the cover. In order to know for sure, this is the right, it can be properly identified with two stickers on the back with one saying " N: Lenovo Thinkpad Edge E545" and another sticker with the model number "20B20011US." There will also be a sticker on the below right of the screen with the model "E545" on it.
The Lenovo Thinkpad E545 15'6-inch (386mm) widescreen laptop designed for home, study and work. It has an HD Antiglare LED-backlight display of 1366 x 768 and 16:9 aspect ratio. Built-in camera HD 720p resolution low light sensitive, fixed focus, and LED indicator. A memory of 16GB max/ PC3-12800 1600MHz DDR3L, non-parity, dual-channel capable, two 204-pin SO-DIMM sockets.
Optical SATA disk with a DVD burner, 12.7mm high, fixed, non-removable, tray-in Hard Disk Drive / SATA 3.0Gb/s, 2.5" wide, 7mm or 9.5mm high, removable, upgradable, Active Protection System. Contains an AMD Radeon HD in processor or AMD Radeon HD 8570M Graphics card. Matte Black keyboard with 6-rows, resistant, multimedia Fn keys, numeric keypad. A wide touchpad below the keyboard. AMD A76M FCH chipset with a 4-in-1 multi card reader ( MMC, SD, SDHC, SDXC). Bluetooth, wifi, and Ethernet compatible.