Lenovo 2491 Laptop User Manual


 
Test results
Diagnostics test results produce the following error code format:
Function Code
Failure Type DeviceID Date
ChkDigits
Text
Function Code:
Represents the feature or function within the PC.
Failure Type:
Represents the type of error encountered.
DeviceID:
Contains the component's unit-ID which corresponds to either a xed disk drive, removable media drive,
processor, specic RIMM, or a device on the PCI bus.
Date:
Contains the date when the diagnostic test was run. The date is retrieved from CMOS and displayed
using the YYYYMMDD format.
ChkDigits:
Contains a 2-digit check-digit value to ensure the following:
Diagnostics were run on the specied date.
Diagnostics were run on the specied computer.
The diagnostic error code is recorded correctly.
Text:
Description of the error.
Note: See “Diagnostic error codes” on page 47
for error code listings.
Quick and Full erase - hard drive
The diagnostics program offers two hard drive format utilities:
Quick Erase Hard Drive
Full Erase Hard Drive
The Quick Erase Hard Drive provides a DOS utility that performs the following:
Destroys the Master Boot Record (MBR) on the hard drive.
Destroys all copies of the FAT Table on all partitions (both the master and backup).
Destroys the partition table.
Provides messages that warn the user that this is a non-recoverable process.
The Full Erase Hard Drive provides a DOS utility that performs the following:
Performs all the steps in Quick Erase.
Provides a DOS utility that writes random data to all sectors of the hard drive.
Provides an estimate of time to completion along with a visual representation of completion status.
Provides messages that warn the user about non-recoverable process.
Important: Make sure that all data is backed up before using the Quick or Full Erase functions.
To select the Quick Erase Hard drive or Full Erase Hard Drive utility, do the following:
1. Select the UTILITY option on the toolbar and press Enter.
2. Select either the QUICK ERASE or FULL ERASE HARD DISK option and follow the instructions.
Chapter 5. Diagnostics 39