User`s guide
2
Power-Up Diagnostics and Display
This chapter provides information on how to interpret error beep codes and
the power-up display on the console screen. In addition, a description of the
power-up and firmware power-up diagnostics is provided as a resource to aid in
troubleshooting.
• Section 2.1 describes how to interpret error beep codes at power-up.
• Section 2.1.1 describes SROM memory tests that can be run at power-up to
isolate failing SIMM memory.
• Section 2.2 describes how to interpret the power-up screen display.
• Section 2.3 describes how to troubleshoot mass-storage problems indicated at
power-up or storage devices missing from the
show config
display.
• Section 2.4 shows the location of storage device LEDs.
• Section 2.5 describes how to troubleshoot EISA bus problems indicated at
power-up or EISA devices missing from the
show config
display.
• Section 2.6 describes how to troubleshoot PCI bus problems indicated at
power-up or PCI devices missing from the
show config
display.
• Section 2.7 describes the use of the fail-safe loader.
• Section 2.8 describes the power-up sequence.
• Section 2.9 describes power-on self-tests.
Power-Up Diagnostics and Display 2–1