Lenovo C315 All-In-One - Manual (Page 35)

Hardware Maintenance Manual
32
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.