Lenovo H520g Lenovo H520g Hardware Maintenance Manual - Page 3

Contents, Using the Setup Utility - computers

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Contents Chapter 1. About this manual 1 Important safety information 1 Chapter 2. Safety information 3 General safety 3 Electrical safety 3 Voltage-selection switch 5 Safety inspection guide 5 Handling electrostatic discharge-sensitive devices 6 Grounding requirements 6 Safety notices (multi-lingual translations) . . . . . 6 Chapter 3. General information . . . . 29 Specifications 29 Lenovo Support Web site 30 Chapter 4. General checkout . . . . . 31 Problem determination tips 31 Chapter 5. Troubleshooting and diagnostics 33 Basic troubleshooting 33 Accessing Control Panel on the Windows 8 operating system 34 Troubleshooting procedure 34 Troubleshooting 35 Audio problems 35 CD problems 37 DVD problems 38 Intermittent problems 39 Hard disk drive problems 39 Keyboard, mouse, or pointing device problems 40 Monitor problems 42 Networking problems 43 Option problems 46 Performance and lockup problems . . . . . 47 Printer problems 49 Serial port problems 49 Software problems 50 USB problems 51 Diagnostics 51 Lenovo Solution Center 51 Chapter 6. Using the Setup Utility program 53 Starting the Setup Utility program 53 © Copyright Lenovo 2013 Viewing and changing settings 53 Using passwords 53 Password considerations 54 Power-On Password 54 Administrator Password 54 Hard Disk Password 54 Setting, changing, and deleting a password . 54 Erasing lost or forgotten passwords (clearing CMOS 55 Enabling or disabling a device 55 Selecting a startup device 55 Selecting a temporary startup device . . . . 55 Selecting or changing the startup device sequence 56 Enabling ErP compliance mode 56 Changing the BIOS settings before installing a new operating system 57 Exiting the Setup Utility program 57 Chapter 7. Symptom-to-FRU index . . 59 Hard disk drive boot error 59 Power supply problems 59 Beep symptoms 59 POST error codes 60 Miscellaneous error messages 62 Undetermined problems 63 Chapter 8. Locations 65 Locations 65 Locating connectors, controls, and indicators on the front of your computer 65 Locating connectors on the rear of your computer 66 Locating major FRUs and CRUs 66 Locating parts on the system board . . . . 68 Locating internal drives 69 Chapter 9. Replacing FRUs 71 Handling static-sensitive devices 71 Installing or replacing hardware 71 Removing the computer cover 72 Removing and reinstalling the front bezel . . 73 Installing or replacing a PCI card 74 Replacing the battery 77 Installing or replacing a memory module . . . 78 Replacing the optical drive 80 Replacing the heat sink and fan assembly . . 82 Replacing the power supply assembly . . . 84 i

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Contents
Chapter 1. About this manual
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1
Important safety information
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Chapter 2. Safety information
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General safety
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Electrical safety
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Voltage-selection switch
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Safety inspection guide
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Handling electrostatic discharge-sensitive
devices
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Grounding requirements
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Safety notices (multi-lingual translations)
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Chapter 3. General information
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29
Specifications
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29
Lenovo Support Web site
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Chapter 4. General checkout
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31
Problem determination tips
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31
Chapter 5. Troubleshooting and
diagnostics
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33
Basic troubleshooting
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33
Accessing Control Panel on the Windows 8
operating system
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34
Troubleshooting procedure
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34
Troubleshooting
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35
Audio problems
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CD problems
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DVD problems
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38
Intermittent problems
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Hard disk drive problems
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Keyboard, mouse, or pointing device
problems
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40
Monitor problems
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42
Networking problems
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43
Option problems
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46
Performance and lockup problems
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47
Printer problems
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49
Serial port problems
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49
Software problems
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50
USB problems
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Diagnostics
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Lenovo Solution Center
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51
Chapter 6. Using the Setup Utility
program
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53
Starting the Setup Utility program
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53
Viewing and changing settings
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53
Using passwords
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53
Password considerations
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54
Power-On Password
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Administrator Password
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Hard Disk Password
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54
Setting, changing, and deleting a password
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54
Erasing lost or forgotten passwords (clearing
CMOS)
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55
Enabling or disabling a device
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55
Selecting a startup device
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55
Selecting a temporary startup device
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55
Selecting or changing the startup device
sequence
.
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.
.
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.
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.
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56
Enabling ErP compliance mode
.
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.
.
.
56
Changing the BIOS settings before installing a new
operating system
.
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.
.
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57
Exiting the Setup Utility program
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57
Chapter 7. Symptom-to-FRU index . .
59
Hard disk drive boot error
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59
Power supply problems
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59
Beep symptoms
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59
POST error codes
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60
Miscellaneous error messages
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Undetermined problems
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63
Chapter 8. Locations
.........
65
Locations
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.
.
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.
.
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.
.
.
.
65
Locating connectors, controls, and indicators
on the front of your computer
.
.
.
.
.
.
.
65
Locating connectors on the rear of your
computer
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
66
Locating major FRUs and CRUs
.
.
.
.
.
.
66
Locating parts on the system board
.
.
.
.
68
Locating internal drives
.
.
.
.
.
.
.
.
.
69
Chapter 9. Replacing FRUs
......
71
Handling static-sensitive devices
.
.
.
.
.
.
.
71
Installing or replacing hardware
.
.
.
.
.
.
.
.
71
Removing the computer cover
.
.
.
.
.
.
.
72
Removing and reinstalling the front bezel
.
.
73
Installing or replacing a PCI card
.
.
.
.
.
.
74
Replacing the battery
.
.
.
.
.
.
.
.
.
.
77
Installing or replacing a memory module .
.
.
78
Replacing the optical drive
.
.
.
.
.
.
.
.
80
Replacing the heat sink and fan assembly .
.
82
Replacing the power supply assembly
.
.
.
84
© Copyright Lenovo 2013
i