Lenovo ThinkCentre M91p Hardware Maintenance Manual - Page 46

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. Viewing the test log Errors reported by the diagnostic test will be displayed by the program as a failed test. To view details of a failure or to view a list of test results, use the following procedure from any test category screen: 1. Press F3 to activate the log file. 2. Press F3 again to save the file to diskette or press F2 to print the file. 40 ThinkCentre Hardware Maintenance Manual