ContentsChapter 1. About this manual . . . . . . 1Important Safety Information. . . . . . . . . . . 1Chapter 2. Safety information . . . . . . 3General safety . . . . . . . . . . . . . . . . 3Electrical safety . . . . . . . . . . . . . . . . 3Safety inspection guide . . . . . . . . . . . . . 5Handling electrostatic discharge-sensitivedevices . . . . . . . . . . . . . . . . . . . 5Grounding requirements . . . . . . . . . . . . 6Safety notices . . . . . . . . . . . . . . . . 6Chapter 3. General information . . . . . 9Specifications . . . . . . . . . . . . . . . . 9Chapter 4. General Checkout . . . . . 11Chapter 5. Using the Setup Utility. . . 13Starting the Lenovo BIOS Setup Utility program . . 13Viewing and changing settings . . . . . . . . . 13Using passwords . . . . . . . . . . . . . . 13Enabling or disabling a device . . . . . . . . . 15Selecting a startup device . . . . . . . . . . . 16Exiting the Lenovo BIOS Setup Utility program. . . 17Chapter 6. Symptom-to-FRUIndex . . . . . . . . . . . . . . . . . . 19Hard disk drive boot error . . . . . . . . . . . 19Power Supply Problems . . . . . . . . . . . 19POST error codes . . . . . . . . . . . . . . 20Undetermined problems . . . . . . . . . . . 20Chapter 7. Locating connectors, controlsand components . . . . . . . . . . . . 21Chapter 8. Replacing hardware . . . . 29General information . . . . . . . . . . . . . 29Replacing the keyboard and mouse . . . . . . . 30Removing the computer cover . . . . . . . . . 30Replacing the power supply assemby . . . . . . 31Removing the front bezel . . . . . . . . . . . 32Replacing an optical drive . . . . . . . . . . . 33Replacing the M.2 storage drive . . . . . . . . 34Replacing the storage drive . . . . . . . . . . 35Replacing the front card reader. . . . . . . . . 36Replacing the PCI Express card . . . . . . . . 37Replacing a memory module. . . . . . . . . . 38Replacing the Wi-Fi card . . . . . . . . . . . 40Replacing the front Wi-Fi antenna . . . . . . . . 41Replacing the rear Wi-Fi antenna . . . . . . . . 42Replacing the heat-sink and fan assembly . . . . 42Replacing the microprocessor . . . . . . . . . 43Replacing the front fan . . . . . . . . . . . . 45Replacing the rear fan . . . . . . . . . . . . 46Replacing the motherboard . . . . . . . . . . 47Chapter 9. FRU lists . . . . . . . . . . 49Chapter 10. General information . . . 57Additional Service Information . . . . . . . . . 57© Copyright Lenovo 2017 iii