Table 4-3 Troubleshoot With The I/O Drawer Ocp; Table 4-4 Troubleshoot 48V Issues - HP AlphaServer ES80 Installation Manual

Table 4–3 Troubleshoot with the I/O Drawer OCP
Symptom
System does not power up.
Table 4–4 Troubleshoot 48V Issues
Symptom
System or part of
the system does
not power up
and/or the fans
are off
Possible Cause
I/O drawer OCP
48V problem
Possible Cause
Any Vaux problem will cause 48V problems
Any LAN problem
Any OCP problem
Signal from the MBM to the power distribution
panel on the subrack not good (cables or cable
connections)
MBM failure
More than one power supply broken
Indicators
OCP LEDs off
Indicators
See the Vaux,
LAN and OCP
sections of your
Service CD
Power supply
LEDs off
Power supply
LEDs off
Power supply
LEDs off
Configure and Troubleshoot 4-9