Diagnostics (Diags) - Compaq ProSignia 500 Maintenance And Service Manual

DIAGNOSTICS (DIAGS)

Diagnostic error codes occur if the system recognizes a problem while
running the Diagnostics program.
defective subassemblies.
Tables 3-2 through 3-17 list possible error codes, a description of the
error condition, and the action required to resolve the error condition.
In each case, the Recommended Action column lists the steps necessary to
correct the problem.
program to verify whether the error condition has been corrected.
error code reappears, perform the next step, then run the Diagnostics
program again. Follow this procedure until the Diagnostics program no
longer detects an error condition.
For assistance in the removal and replacement of a particular subassembly,
see Chapter 2, "Removal and Replacement Procedures."
If you encounter an error condition, complete the following steps before
starting problem isolation procedures:
1. Ensure that there is proper ventilation.
approximately 3 inches (7 to 8 cm) clearance at the front and back of
the system unit.
2. Turn off the computer and peripheral devices.
3. Disconnect any peripheral devices other than the monitor and keyboard.
Do not disconnect the printer if you want to test it or use it to log
error messages.
4. Delete the power-on password, if set.
password is set when a key icon appears on the screen when POST
completes. If this occurs, you must enter the password to continue.
To delete the password, type the current password and press the Enter
key.
5. If you do not have access to the password, you must disable the
power-on password by using the Password Disable switch on the system
board.
6. Install an Ethernet loopback plug when instructed to by Diagnostics
utility. (part no. 142054-001)
7. Run the latest version of Diagnostics.
Table 3-2. Primary Processor Test Error Codes
===========================================================================
Error Description
Code
---------------------------------------------------------------------------
101-xx CPU test failed
---------------------------------------------------------------------------
103-xx DMA page registers test
failed
104-xx Interrupt controller
These error codes help identify possible
After completing each step, run the Diagnostics
Recommended Action
Replace the processor board and retest.
Replace the processor board and retest
for error codes 103-xx through 106-xx.
The computer should have
You will know that the power-on
If the