4.5 Troubleshooting Power during Power-up
If you are having difficulty with power-up, check your Vaux, internal LAN and
OCP, and check for 48V issues. The system needs certain minimal power and
system management capabilities to power-up.
Table 4–1 Troubleshoot Vaux
Symptom Possible Cause Indicators
AC input box not plugged in/power cord faulty
(AC input box LEDs not lit)
AC LEDs off
AC input box circuit breakers tripped AC LEDs off
AC input box broken AC LEDs off
Power cords from AC input box to power
supplies not plugged in or faulty
Power supply
LEDs off
System does not
power up, and/or
the fans are off,
and/or there is
nothing on the
console.
Power supplies broken (Vaux LEDs off) Power supply
LEDs off
Table 4–2 Troubleshoot Internal LAN
Symptom Possible Cause Indicators
Poor connections along the path from the
console, wherever it is, to the internal LAN.
No messages on
the console
Router broken No messages on
the console
System does not
power up.
Vaux problem See Vaux
problems
4-8 hp AlphaServer ES47/ES80/GS1280 I/O Drawer Upgrade
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