Compaq 400CX 486 DX2/40 MHZ 250 MB 4 MB 8.4 Personal Computer User Manual


 
boots from the hard drive (or from a bootable diskette if installed
in the diskette drive). However, diskette drive may be disabled, and
the computer cannot boot from the diskette drive.
- If POST detects errors, the errors are indicated by screen and/or
audible messages. Refer to "Power-On Self-Test (POST) Error
Messages" in this section for a list of POST error messages, probable
causes, and recommended actions.
3. Take the recommended action for each error code, then repeat steps 1
and 2 until POST runs successfully.
After POST runs successfully, run Computer Checkup (Section 4.3).
NOTE: If the system is not functioning well enough to run POST, or if the
display is not functioning well enough to show POST error messages,
refer to the troubleshooting tables in Section 5.4. Take the
recommended actions, then repeat steps 1 and 2 until POST runs
successfully.
Chapter 4.3 Computer Checkup (TEST)
After POST runs successfully, run the latest version of Computer Checkup
(TEST). Computer Checkup determines if the computer assemblies and options
are recognized by the system and functioning properly. Run Computer
Checkup after installing or connecting a new assembly or option.
Computer Checkup is installed on the hard drive. If the hard drive is
nonfunctional, you can run it from a diskette.
NOTE: It is recommended that you make diskette copies of Computer Checkup
and keep them available for future need. A current copy can be
obtained from the Compaq Customer Support Center.
Running Computer Checkup
To run Computer Checkup from the hard drive, complete the following steps:
1. Turn off the computer by simultaneously pressing the left Ctrl+Alt keys
and power button.
2. Turn on the computer.
3. When the cursor moves to the right side of the screen, press F10.
The Configuration and Diagnostics menu is displayed.
4. From the Configuration and Diagnostics menu, select Computer Checkup
(TEST).
A test option menu is displayed.