IBM Netfinity 4500R User Reference Manual page 149

Lit LED on
diagnostics
panel
PCI A An error occurred on PCI bus A. Either an
adapter in PCI slot 1 or 2 or the system
board caused the error.
PCI B An error occurred on PCI bus B. Either an
adapter in PCI slot 3, 4, or 5 or the system
board caused the error.
VRM One of the VRMs on the system board has
failed.
DASD1 SCSI channel A has failed.
Table 19. Light path diagnostics
Cause Action
1. Check the error log for additional
information. If the error log indicates a
problem with the integrated Ethernet
controller or the integrated SCSI
controller, have your system serviced.
2. If you cannot isolate the failing adapter
from the information in the error log, try
to determine the failing adapter by
removing one adapter at a time from
PCI bus A (PCI slots 1 and 2) and
restarting the server after each adapter is
removed.
If the problem persists, have the system
serviced.
1. Check the error log for additional
information.
2. If you cannot isolate the failing adapter
from the information in the error log, try
to determine the failing adapter by
removing one adapter at a time from
PCI bus B (PCI slots 3, 4, and 5) and
restarting the server after each adapter is
removed.
If the problem persists, have the system
serviced.
Check the VRM failure LEDs on the system
board.
• If the VRM1 failure LED is on, have the
system serviced.
• If the VRM2 failure LED is on:
1. Turn off the server, reseat the VRM,
and restart the server.
2. If the problem persists, replace the
VRM.
If the problem still persists, have the system
serviced.
1. If an amber LED on a hot-swap hard
disk drive is on, replace the hard disk
drive.
2. Run the diagnostics programs. Replace
any identified failing device.
3. If the error log indicates a temperature
problem and the fans are working
correctly, have the system serviced.
If the problem still persists, have the system
serviced.
Chapter 7. Solving problems
137