Lenovo ThinkCentre 7515 Hardware Maintenance Manual page 54

Test results
Diagnostics test results produce the following error code format:
v Function Code:
v Failure Type:
v DeviceID:
v Date:
v ChkDigits:
v Text:
Note: See "Diagnostic error codes" on page 56 for error code listings.
Quick and Full erase - hard drive
The diagnostics program offers two hard drive format utilities:
v Quick Erase Hard Drive
v Full Erase Hard Drive
The Quick Erase Hard Drive provides a DOS utility that performs the following:
v Destroys the Master Boot Record (MBR) on the hard drive.
v Destroys all copies of the FAT Table on all partitions (both the master and
v Destroys the partition table.
v 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:
v Performs all the steps in Quick Erase.
v Provides a DOS utility that writes random data to all sectors of the hard drive.
v Provides an estimate of time to completion along with a visual representation of
v Provides messages that warn the user about non-recoverable process.
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Hardware Maintenance Manual
Function Failure Type
Code
Represents the feature or function within the PC.
Represents the type of error encountered.
Contains the component's unit-ID which corresponds to either a fixed disk
drive, removable media drive, serial or parallel port, processor, specific RIMM,
or a device on the PCI bus.
Contains the date when the diagnostic test was run. The date is retrieved from
CMOS and displayed using the YYYYMMDD format.
Contains a 2-digit check-digit value to ensure the following:
– Diagnostics were run on the specified date.
– Diagnostics were run on the specified computer.
– The diagnostic error code is recorded correctly.
Description of the error.
backup).
completion status.
Important: Make sure that all data is backed up before using the Quick or Full Erase
functions.
DeviceID Date ChkDigits Text