Power-On Self-Test (Post) - Compaq ProLiant 1600 Maintenance And Service Manual

3-4 Diagnostic Tools

Power-On Self-Test (POST)

POST is a series of diagnostic tests that runs automatically on Compaq computers when the
system is turned on. POST checks the following assemblies to ensure that the computer
system is functioning properly:
Keyboard
Power supply
System board
Memory
Memory expansion boards
Controllers
Diskette drives
Hard drives
If POST finds an error in the system, an error condition is indicated by an audible and/or
visual message. If an error code is displayed on the screen during POST or after resetting the
system, follow the instructions in Table 3-1. The error messages and codes listed in Table 3-1
include all codes generated by Compaq products. Your system generates only those codes that
are applicable to your configuration and options.
Error Code
A Critical Error
occurred prior to
this power-up
101-ROM Error
101-I/O ROM
Error
102-System
Board Failure
104-ASR-2
Timer Failure
162-System
Options Not Set
Table 3-1
POST Error Messages
Audible
Beeps Probable Source of
L=Long Problem
S=Short
None A catastrophic system
error, which caused the
server to crash, has been
logged.
1L,1S System ROM checksum.
None Options ROM checksum.
None DMA, timers, etc.
None System board failure.
2S Configuration incorrect.
Action
Run Diagnostics. Replace
failed assembly as indicated.
Run Diagnostics. Replace
failed assembly as indicated.
Run Diagnostics. Replace
failed assembly as indicated.
Replace the system board.
Run the Compaq System
Configuration Utility.
Run Diagnostics. Replace failed
assembly as indicated.
Run the System Configuration
Utility and correct.
Continued