HP rp3440 User Service Guide, Sixth Edition - HP 9000 rp3410/rp3440 - Page 105

Server Does Not Power On, Operating System Does Not Boot - connect to console from os

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Table 3-10 Server Power Button Functions When Server is On and OS is Running Action One to three seconds Five seconds or longer Reaction System power turns off (software controlled power off) System power turns off immediately (hard power off) If the server is off, and power is not connected to server power supplies, pressing the Power button has no effect. If the server is off, and power is connected to server power supplies, the front panel power LED blinks at a 1 Hz rate. In this state, standby power is available to server circuits, but main power is off. Table 3-11 describes what happens when the server is off, and you press the Power button. Table 3-11 Server Power Button Functions When Server is Off Action One to three seconds Reaction System power turns on Server Does Not Power On The server Power button on the front panel operates differently depending on how long the button is held, and on what the server is doing when the button is pressed. You must be aware of its uses to properly troubleshoot the server. NOTE: If the server is off, and power is not connected to server power supplies, pressing the Power button has no effect. Power problems during installation are usually related to the installation process. If the server does not power on, check the LED indicators on the power supply rear panels and follow these steps. • If the AC power LED on the power supply on the rear panel of the server is lit, power is available to the server. • If the AC power LED is not lit, the server is either in standby power mode, or there is a problem. Reseat the power supply. If the problem persists, remove and reseat the board within the server. If the problem persists, replace the power supply or the power supply interface board. • If the console shows that the server is powered on, but server LEDs indicate that power is off, remove and reseat connectors on the LED status board. If the problem persists, replace the LED status board. If the console shows that the server is not powered on (server is off), remove and reseat connectors on the system board. If the problem persists, replace the power supply interface board, or the system board. Operating System Does Not Boot If the operating system does not boot, but you are able to reach the BCH from either the main disk partition or the CD, use the following tools to help solve the problem: • Check the system logs and analyze any error messages. • Offline Diagnostic Environment (ODE) Troubleshooting 105

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Table 3-10 Server Power Button Functions When Server is On and OS is Running
Reaction
Action
System power turns off (software controlled power off)
One to three seconds
System power turns off immediately (hard power off)
Five seconds or longer
If the server is off, and power is not connected to server power supplies, pressing the Power
button has no effect.
If the server is off, and power is connected to server power supplies, the front panel power LED
blinks at a 1 Hz rate. In this state, standby power is available to server circuits, but main power
is off.
Table 3-11
describes what happens when the server is off, and you press the Power button.
Table 3-11 Server Power Button FunctionsWhen Server is Off
Reaction
Action
System power turns on
One to three seconds
Server Does Not Power On
The server Power button on the front panel operates differently depending on how long the
button is held, and on what the server is doing when the button is pressed. You must be aware
of its uses to properly troubleshoot the server.
NOTE:
If the server is off, and power is not connected to server power supplies, pressing the
Power button has no effect.
Power problems during installation are usually related to the installation process. If the server
does not power on, check the LED indicators on the power supply rear panels and follow these
steps.
•
If the AC power LED on the power supply on the rear panel of the server is lit, power is
available to the server.
•
If the AC power LED is not lit, the server is either in standby power mode, or there is a
problem. Reseat the power supply. If the problem persists, remove and reseat the board
within the server. If the problem persists, replace the power supply or the power supply
interface board.
•
If the console shows that the server is powered on, but server LEDs indicate that power is
off, remove and reseat connectors on the LED status board. If the problem persists, replace
the LED status board.
If the console shows that the server is not powered on (server is off), remove and reseat
connectors on the system board. If the problem persists, replace the power supply interface
board, or the system board.
Operating System Does Not Boot
If the operating system does not boot, but you are able to reach the BCH from either the main
disk partition or the CD, use the following tools to help solve the problem:
•
Check the system logs and analyze any error messages.
•
Offline Diagnostic Environment (ODE)
Troubleshooting
105