IBM eServer 240 xSeries User Reference Manual page 165

Table 15 (Page 2 of 4). Light path diagnostics
System Error
LED (operator Lit LED on
information diagnostic LED
panel) panel
On (continued) PCI BUS A
PCI BUS B
HDD
NMI
Cause
An error occurred on PCI bus A. An
adapter in PCI slot 1 or 2 or the system
board caused the error.
An error occurred on PCI bus B. An
adapter in PCI slot 3, 4, or 5, or the
system board caused the error.
A hot-swap hard disk drive has failed
on bus 1.
A nonmaskable interrupt occurred.
Action
1. Check the error log for additional
information. If the error log
indicates a problem with the
integrated Ethernet 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 slot 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. If the error log
indicates a problem with the
integrated SCSI controller, have the
system serviced.
2. If you cannot correct the problem
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
3–5) 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. If the error log
indicates a temperature problem
and the fans are working correctly,
have the system serviced.
2. If the amber Hard Disk Status LED
on one of the hot-swap hard disk
drives is on, and you have an
optional RAID adapter installed,
refer to the documentation provided
with the adapter for more
information.
1. If the PCI BUS A or PCI BUS B
LED is on, follow the instructions
for those LEDs.
2. If the PCI BUS A or PCI BUS B
LED is not on, restart the server.
If the problem persists, have the
system serviced.
Chapter 6. Solving problems
155