Compaq ES40CSLP, Инструкция по установке, использованию и обслуживанию

Страница: 134 / 196

Troubleshooting and Diagnostics
6–8 Compaq ES40CSLP Rackmount System Installation/User/Service Guide
6.5 Power-Up Diagnostics
The following sections explain how to interpret the power-up display on the console screen and
the operator control panel. In addition, descriptions of the power-up sequence and firmware
power-up diagnostics are provided to aid in troubleshooting. The following topics are covered:
•
System startup diagnostics
•
System power-on process
•
RMC diagnostics
•
SROM power-up display
•
SRM console power-up display
•
Fail-safe loader
•
Identifying a bad RMC
6.5.1 System Startup Diagnostics
The power-up process begins with the power on of the power supplies. After the AC and DC
power-up sequences are completed, the remote management console (RMC) reads EEROM
information and passes it to SROM. The SROM minimally tests the CPUs, initializes and tests
backup cache, and minimally tests memory. Finally, the SROM loads the SRM console
program from flash ROM into memory and jumps to the first instruction in the console
program.
There are three distinct sets of power-up diagnostics:
1. System power controller and remote management console (RMC) diagnostics—These
diagnostics check the power regulators, temperature, and fans. Failures are reported in the
dual-port RAM (DPR) on the control panel. Certain failures may prevent the system from
powering on.
2. Serial ROM (SROM) diagnostics—SROM tests check the basic functionality of the system
and load the console code from the FEPROM on the system motherboard into system
memory. Failures during SROM tests are indicated by messages on the serial console
terminal and the control panel.
3. Console firmware diagnostics—These tests are executed by the SRM console code. They
test the core system, including all boot path devices. Failures during these tests are
reported to the console terminal through the power-up screen or console event log.