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Table 2. Abbreviated list of POST error codes (continued)
v Follow the suggested actions in the order in which they are listed in the Action
column until the problem is solved.
v See the parts listing in the Problem Determination and Service Guide to determine
which components are customer replaceable units (CRU) and which components
are field replaceable units (FRU).
v If an action step is preceded by “(Trained service technician only),” that step must
be performed only by a trained service technician.
Error code Description Action
I9990305 An operating system was not
found.
1. Make sure that a bootable
operating system is installed.
To determine whether an
operating system is one of the
devices in the startup
sequence, run the
Configuration/Setup Utility
program (see the User’s Guide
on the IBM xSeries
Documentation CD).
2. Run the hard disk drive
diagnostic tests (see “Running
the diagnostic programs” in the
Problem Determination and
Service Guide on the IBM
xSeries Documentation CD).
3. Reseat the following
components, depending on the
server model:
v Hot-swap models:
a. Hard disk drive
b. Mini-PCI-X adapter cable
c. Mini-PCI-X adapter
d. PCI-X expansion card
v
Simple-swap models:
a. Hard disk drive
b. Hard disk drive cable
v
Non-hot-swap models: hard
disk drive cable
4.
Replace the following
components one at a time,
depending on the server
model, in the order shown,
restarting the server each time:
v Hot-swap models:
a. Hard disk drive
b. Mini-PCI-X adapter cable
c. SAS backplane
d. Mini-PCI-X adapter
e. PCI-X expansion card
v
Simple-swap and
non-hot-swap models:
a. Hard disk drive
b. Hard disk drive cable
5.
(Trained service technician
only) Replace the system
board.
62 xSeries 206m Types 8485 and 8490: Installation Guide