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Power supply problems, Post error codes – Lenovo IdeaCentre Q700 User Manual

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Chapter 6. Symptom-to-FRU Index

23

Error

FRU/Action

The boot sector on the start-up
drive is corrupted.

The drive must be formatted do the
following:
1. Attempt to back-up the data on

the failing hard disk drive.

2. Using the operating systems

programs format the hard disk
drive.

The drive is defective.

Replace the hard disk drive.

Power Supply Problems

If you suspect a power problem, use the following procedures.

Check/Verify

FRU/Action

Check the following for proper
installation.

Power Cord

On/Off Switch connector

On/Off Switch Power Supply

connector
System Board Power Supply

connectors
Microprocessor(s) connection

Reseat connectors

Check the power cord for continuity. Power Cord
Check the power-on switch for
continuity.

Power-on Switch

POST error codes

Each time you power-on the system, it performs a series of tests that
check the operation of the system and some options. This series of tests is
called the Power-On Self-Test, or POST. POST does the following operations.

• Checks some basic system-board operations
• Checks the memory operation
• Starts the video operation
• Verifies that the boot drive is working

If the POST detects a problem, an error message appears on the screen. A
single problem can cause several error messages to appear. When you correct
the cause of the first error message, the other error messages probably will
not appear on the screen the next time you turn on the system.