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Lenovo
a70 7099
Guia Do Utilizador
Lenovo a70 7099 Guia Do Utilizador
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Contents
Chapter 1. About this manual
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Important safety information .
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Important information about replacing RoHS
compliant FRUs .
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Chapter 2. Safety information . . . . . 3
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 . . . . 39
Lenovo ThinkVantage Tools .
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ThinkVantage Productivity Center .
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Lenovo Welcome
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Additional information resources .
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Specifications .
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. 41
For machine types: 0864, 7099, and 7846.
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For machine types: 0889, 5023, and 7844.
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. 42
Chapter 4. General checkout . . . . . 43
Problem determination tips .
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Chapter 5. Diagnostic programs . . . . 45
Lenovo ThinkVantage Toolbox .
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PC-Doctor for Rescue and Recovery .
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PC-Doctor for DOS .
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Creating a diagnostic disc
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Running the diagnostic program from the
diagnostic disc .
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Navigating through the diagnostic programs .
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Running tests.
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Viewing the test log
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Chapter 6. Using the Setup Utility . . . 49
Starting the Setup Utility program .
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Viewing or changing settings
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Using passwords
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Password considerations .
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. 50
Power-on password
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. 50
Administrator password .
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Setting, changing, or deleting a password .
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Enabling or disabling a device .
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Selecting a startup device.
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Selecting a temporary startup device .
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Viewing or changing the startup device sequence 52
Exiting the Setup Utility program .
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Chapter 7. Symptom-to-FRU index . . . 53
Hard disk drive boot error .
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Power Supply Problems .
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Diagnostic error codes .
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Beep symptoms .
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POST error codes
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Miscellaneous error messages .
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Undetermined problems .
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. 80
Chapter 8. Replacing FRUs (Machine
Types: 0864, 7099, and 7846.) . . . . . 83
Locating connectors, controls, and indicators on the
front of your computer
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. 83
Locating connectors and parts on the rear of your
computer .
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. 84
Locating components .
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Locating parts on the system board .
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Locating internal drives .
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Removing the computer cover .
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Removing and reinstalling the front bezel .
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Installing or replacing a PCI card .
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Installing or replacing a memory module
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Replacing the battery .
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Replacing the power supply assembly
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Replacing the heat sink and fan assembly .
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Replacing the microprocessor .
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Replacing the optical drive .
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Replacing the hard disk drive .
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Replacing the card reader .
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Replacing the front audio and USB assembly .
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Replacing the system board.
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Completing the parts replacement
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Chapter 9. Replacing FRUs (Machine
Types: 0889, 5023, and 7844.) . . . . 117
Locating connectors, controls, and indicators on the
front of your computer .
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Locating connectors and parts on the rear of your
computer .
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. 118
Locating components .
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. 119
Locating parts on the system board .
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. 120
Locating internal drives .
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. 121
Removing the computer cover.
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Removing and reinstalling the front bezel .
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Accessing the system board components and
drives .
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. 125
Installing or replacing a PCI card.
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Installing or replacing a memory module .
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. 128
Replacing the battery .
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. 130
Replacing the heat sink and fan assembly .
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Replacing the microprocessor .
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. 135
Replacing the power supply assembly .
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. 138
Replacing the optical drive .
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. 142
Replacing the system board
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. 146
Replacing the hard disk drive .
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. 149
Replacing the card reader .
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. 152
Replacing the front audio and USB assembly .
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. 153
Replacing the front fan assembly .
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. 154
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