Table Of Contents - Lenovo ThinkCentre M70z Hardware Maintenance Manual

Machine types: 7570, 7577, 7578, 7580, 7583, 7584, 7589, 7594, 7595, 7597, and 7598
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Contents
Important Safety Information . . . . . . . . . .
compliant FRUs . . . . . . . . . . . . . . .
General safety . . . . . . . . . . . . . . . .
Electrical safety . . . . . . . . . . . . . . .
Safety inspection guide . . . . . . . . . . . .
devices . . . . . . . . . . . . . . . . . .
Grounding requirements . . . . . . . . . . . .
Lenovo Welcome. . . . . . . . . . . . . .
Specifications . . . . . . . . . . . . . . .
Problem determination tips . . . . . . . . . .
Chapter 5. Diagnostics . . . . . . . . 33
PC-Doctor for DOS . . . . . . . . . . . . .
diagnostic disc . . . . . . . . . . . . .
programs . . . . . . . . . . . . . . .
Running tests . . . . . . . . . . . . .
Viewing the test log . . . . . . . . . . .
program . . . . . . . . . . . . . . . . 37
Using passwords. . . . . . . . . . . . . .
Password considerations . . . . . . . . .
Administrator password . . . . . . . . .
Power-on password . . . . . . . . . . .
Selecting a startup device . . . . . . . . . .
© Copyright Lenovo 2010, 2011
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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 . . . . . . . . . . . . . .
POST error codes . . . . . . . . . . . . .
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Undetermined problems . . . . . . . . . . .
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the front of your computer . . . . . . . . . .
computer . . . . . . . . . . . . . . . . .
FRU locations . . . . . . . . . . . . . . .
Replacing the optical drive . . . . . . . . . .
Replacing the card reader . . . . . . . . . .
Replacing the inverter . . . . . . . . . . . .
Replacing the power supply . . . . . . . . .
Replacing the system fan . . . . . . . . . .
Replacing the heat sink . . . . . . . . . . .
Replacing the PS2 COM Port . . . . . . . . .
Replacing the battery . . . . . . . . . . . .
Replacing the WI-FI card. . . . . . . . . . .
microphone . . . . . . . . . . . . . . . .
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