IBM 887022X Maintenance Manual - Page 86

Ethernet, controller, troubleshooting

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1 23 Jumper (J28) 4. Move the jumper from pins 1 and 2 to pins 2 and 3 to enable the BIOS back page. 5. Reconnect all external cables and power cords and turn on the peripheral devices. 6. Insert the BIOS flash diskette into the diskette drive. 7. Restart the server. The system begins the power-on self-test (POST) and BIOS flash. 8. Select 1 - Update POST/BIOS from the menu that contains various flash (update) options. 9. When prompted as to whether you want to save the current code to a diskette, press N. 10. When prompted to choose a language, select a language (from 0 to 7) and press Enter to accept your choice. 11. Do not restart the system at this time. 12. Remove the BIOS flash diskette from the diskette drive. 13. Turn off the server. 14. Move the jumper on J28 to pins 1 and 2 to return to normal startup mode. 15. Replace fans 3 and 4 (see "Replacing fans 3 and 4" on page 123). 16. Restart the server. 17. Replace the cover (see "Closing the cover" on page 125). Ethernet controller troubleshooting The method of testing the Ethernet controller depends on which operating system is being used (see the Ethernet controller device driver README file). You can use the Ethernet wrap test to determine if a hardware problem is causing the Ethernet connection to fail. To perform the Ethernet wrap test, use the wrap plug (FRU 48P9494) with the diagnostic tests. Note: The wrap plug connects to the Ethernet port. Do not connect the wrap plug to the serial port of the Remote Supervisor Adapter. 76 xSeries 445 Type 8870: Hardware Maintenance Manual and Troubleshooting Guide

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Jumper (J28)
1
2
3
4.
Move
the
jumper
from
pins
1
and
2
to
pins
2
and
3
to
enable
the
BIOS
back
page.
5.
Reconnect
all
external
cables
and
power
cords
and
turn
on
the
peripheral
devices.
6.
Insert
the
BIOS
flash
diskette
into
the
diskette
drive.
7.
Restart
the
server.
The
system
begins
the
power-on
self-test
(POST)
and
BIOS
flash.
8.
Select
1
-
Update
POST/BIOS
from
the
menu
that
contains
various
flash
(update)
options.
9.
When
prompted
as
to
whether
you
want
to
save
the
current
code
to
a
diskette,
press
N.
10.
When
prompted
to
choose
a
language,
select
a
language
(from
0
to
7)
and
press
Enter
to
accept
your
choice.
11.
Do
not
restart
the
system
at
this
time.
12.
Remove
the
BIOS
flash
diskette
from
the
diskette
drive.
13.
Turn
off
the
server.
14.
Move
the
jumper
on
J28
to
pins
1
and
2
to
return
to
normal
startup
mode.
15.
Replace
fans
3
and
4
(see
“Replacing
fans
3
and
4”
on
page
123).
16.
Restart
the
server.
17.
Replace
the
cover
(see
“Closing
the
cover”
on
page
125).
Ethernet
controller
troubleshooting
The
method
of
testing
the
Ethernet
controller
depends
on
which
operating
system
is
being
used
(see
the
Ethernet
controller
device
driver
README
file).
You
can
use
the
Ethernet
wrap
test
to
determine
if
a
hardware
problem
is
causing
the
Ethernet
connection
to
fail.
To
perform
the
Ethernet
wrap
test,
use
the
wrap
plug
(FRU
48P9494)
with
the
diagnostic
tests.
Note:
The
wrap
plug
connects
to
the
Ethernet
port.
Do
not
connect
the
wrap
plug
to
the
serial
port
of
the
Remote
Supervisor
Adapter.
76
xSeries
445
Type
8870:
Hardware
Maintenance
Manual
and
Troubleshooting
Guide