IBM Aptiva 2158, Hardware Maintenance Service, Page: 101 / 222

Diagnostic Aids 69
drive, depending on the Start options selected in the BIOS Setup Utility.
If any errors are detected by POST, there will be an error message
accompanied with an error code shown on display screen and a beep. See
“Index of Symptoms, Messages, Error Codes, or Beeps” on page 33 to find
the most likely cause and countermeasure.
Diagnostic Diskette
WARNING: This manual is intended to test the IBM Aptiva 2158/2163/2164
machine type only. Testing devices which are not included with the
original product package, including other IBM products, prototype cards,
or modifying hardware settings may give false errors and invalid system
responses. The diagnostics not specifically made for this model may
also report incorrect errors and information.
The diagnostics program comes on a diskette along with this book. This
version of PC-Doctor diagnostics program, developed by Watergate for IBM, is
the primary method of testing the computer. You can use it to test the IBM
components of the system and some external devices. The amount of time
required to test components depends on the number of components installed
and selected. The more devices you have attached to your system and
selected in PC-Doctor, the longer the testing will take.
NOTE: The diagnostics program for Aptiva 2158/2163/2164 are the same.
Using the Diagnostic Diskette
1. Power-off the system unit.
2. Insert diagnostic diskette in drive A.
3. Power-on the system unit.
NOTE: Do not press F1 during POST. If any POST errors appear after POST,
make a note of the errors.
4. DOS should load. During boot, verify that each driver loads successfully. For
drivers that do not load successfully, verify that the device driver is
associated with it and is installed properly.
5. Diagnostics program (PC-Doctor) will load, then follow the screen
instructions to operate.
Using Diagnostic Program from Recovery CD
1. Insert the Aptiva recovery CD into the CD-ROM drive then restart computer.
2. Depress F1 while POST to enter BIOS Setup menu. Select and enter
“Startup Options”, set the first priority of boot sequence to CD-ROM. Save