IBM 8500R - Netfinity - 8681, Hardware Maintenance Manual

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adapters installed). If a PCI adapter is present
and its attention light is flashing, suspect the
following FRUs in this order:
1) PCI adapter
2) I/O board
3) I/O function card
d. If no PCI adapters are installed and one or more
PCI attention lights flashing, suspect FRUs in
this order:
1) I/O board
2) I/O function card
e. Power-off the computer, wait 30 seconds and
then power-on the computer.
f. If the system boots at least as far as the IBM
logo screen, go to 16 on page 216. If the
system will not boot to the IBM logo screen,
consider the following note and continue with 8g.
Note
Minimum partial-boot requirements are:
Ÿ
I/O Board
Ÿ
I/O Function Card
Ÿ
Midplane
Ÿ
Power Control Card
Ÿ
Power Supply (1)
Ÿ
LED card
Ÿ
Processor Daughter Board (1)
Ÿ
Processor Controller Board
Ÿ
Processor (1)
Ÿ
Memory Card (1)
Ÿ
DIMM (Minimum requirement = 1 DIMM
of 128 MB or larger)
Ÿ
Video Monitor (Display)
g. Reduce the server to the minimum partial-boot
configuration (see note).
h. Retest the system. Use jumper J11 on the I/O
board to force power on since the front panel is
disconnected.
i. If the system does not boot as far as the IBM
logo screen, go to 10 on page 215.
j. If the system boots to the IBM logo screen,
power-off the system, remove jumper J11 on the
I/O board, and add components back into the
system one at a time and reboot the system until
the system fails to boot as far as the IBM logo
screen. This narrows the possibilities of the
failing FRU to the last FRU added, or the board
it plugs into.
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