Lenovo C40-05 Lenovo C40 Series All-In-One Computer Hardware Maintenance Manua - Page 5

Contents Chapter 1. About this manual . . . . . 1 Important Safety Information 1 Chapter 2. Safety information . . . . . 3 General safety 3 Electrical safety 3 Safety inspection guide 5 Handling electrostatic discharge-sensitive devices 5 Grounding requirements 6 Safety notices 6 Chapter 3. General information . . . . 9 Specifications 9 Chapter 4. General Checkout . . . . . 11 Chapter 5. Using the Setup Utility. . . 13 Starting the Lenovo BIOS Setup Utility program . 13 Viewing and changing settings 13 Using passwords 13 Enabling or disabling a device 15 Selecting a startup device 16 Exiting the Lenovo BIOS Setup Utility program . . 17 Chapter 6. Symptom-to-FRU Index . . 19 Hard disk drive boot error 19 Power Supply Problems 19 POST error codes 20 Undetermined problems 20 Chapter 7. Replacing hardware . . . . 21 General information 21 Replacing the keyboard and mouse 22 Replacing the adapter 22 Removing the stand base 23 Removing the foot cover 24 Replacing the memory module 25 Replacing the hard disk drive 26 Removing the stand holder 27 Removing the middle cover 28 Replacing the optical drive 31 Replacing the power switch board 33 Replacing the converter board 34 Removing the EMI cover 35 Replacing the system fan 36 Replacing the heat-sink 37 Replacing the speaker system 39 Replacing the Wi-Fi card 40 Removing the rear deco 41 Replacing the motherboard 43 Replacing the camera 44 Replacing the LED panel module 46 Chapter 8. FRU lists 49 Chapter 9. FRU lists 59 Chapter 10. General information . . . 69 Additional Service Information 69 © Copyright Lenovo 2014 iii