IBM 8658 User Guide - Page 28

Recovering, Troubleshooting, Ethernet, controller, Network, connection, problems - 11y

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Recovering BIOS If your BIOS has become corrupted, such as from a power failure during a flash update, you can recover your BIOS using the recovery boot block and a BIOS flash diskette. Note: You can obtain a BIOS flash diskette from one of the following sources: v Use the ServerGuide program to make a BIOS flash diskette. v Download a BIOS flash diskette from the World Wide Web. Go to http://www.pc.ibm.com/support/, select IBM Server Support, and make the selections for your server. The flash memory of your server contains a protected area that cannot be overwritten. The recovery boot block is a section of code in this protected area that enables the server to start up and to read a flash diskette. The flash utility recovers the system BIOS from the BIOS recovery files on the diskette. To recover the BIOS: 1. Turn off the server and peripheral devices and disconnect all external cables and power cords; then, remove the cover. 2. Locate the boot block jumper (J37) on the system board. 3. Place a jumper on pins 1 and 2 to enable BIOS recovery mode. 4. Insert the BIOS flash diskette into the diskette drive. 5. Restart the server. The Recovery Boot screen will appear. A progress report, Loading data from diskette xx%, is displayed. When programming is underway, a further progress report, Programming block n of 7 yy%, is displayed. When recovery is complete, Recovery complete, remove the diskette and return boot block switch to the off position before rebooting is displayed. 6. Remove the flash diskette from the diskette drive. 7. Turn the server off. 8. Remove the jumper on the boot-block jumper block or move pins 2 and 3 to return to normal startup mode. 9. Restart the server. The system should start up normally. Troubleshooting the Ethernet controller This section provides troubleshooting information for problems that might occur with the 10/100 Mbps Ethernet controller. Network connection problems If the Ethernet controller cannot connect to the network, check the following: v Make sure that the cable is installed correctly. The network cable must be securely attached at all connections. If the cable is attached but the problem persists, try a different cable. If you set the Ethernet controller to operate at 100 Mbps, you must use Category 5 cabling. If you directly connect two workstations (without a hub), or if you are not using a hub with X ports, use a crossover cable. Note: To determine whether a hub has an X port, check the port label. If the label contains an X, the hub has an X port. 18 : Netfinity 5100 Type 8658 Models 11Y, 21Y, 31Y, 41Y, 51Y, 1RY, 2RY, 3RY, 4RY, 5RY

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Recovering
BIOS
If
your
BIOS
has
become
corrupted,
such
as
from
a
power
failure
during
a
flash
update,
you
can
recover
your
BIOS
using
the
recovery
boot
block
and
a
BIOS
flash
diskette.
Note:
You
can
obtain
a
BIOS
flash
diskette
from
one
of
the
following
sources:
v
Use
the
ServerGuide
program
to
make
a
BIOS
flash
diskette.
v
Download
a
BIOS
flash
diskette
from
the
World
Wide
Web.
Go
to
select
IBM
Server
Support,
and
make
the
selections
for
your
server.
The
flash
memory
of
your
server
contains
a
protected
area
that
cannot
be
overwritten.
The
recovery
boot
block
is
a
section
of
code
in
this
protected
area
that
enables
the
server
to
start
up
and
to
read
a
flash
diskette.
The
flash
utility
recovers
the
system
BIOS
from
the
BIOS
recovery
files
on
the
diskette.
To
recover
the
BIOS:
1.
Turn
off
the
server
and
peripheral
devices
and
disconnect
all
external
cables
and
power
cords;
then,
remove
the
cover.
2.
Locate
the
boot
block
jumper
(J37)
on
the
system
board.
3.
Place
a
jumper
on
pins
1
and
2
to
enable
BIOS
recovery
mode.
4.
Insert
the
BIOS
flash
diskette
into
the
diskette
drive.
5.
Restart
the
server.
The
Recovery
Boot
screen
will
appear.
A
progress
report,
Loading
data
from
diskette
xx
%,
is
displayed.
When
programming
is
underway,
a
further
progress
report,
Programming
block
n
of
7
yy%
,
is
displayed.
When
recovery
is
complete,
Recovery
complete,
remove
the
diskette
and
return
boot
block
switch
to
the
off
position
before
rebooting
is
displayed.
6.
Remove
the
flash
diskette
from
the
diskette
drive.
7.
Turn
the
server
off.
8.
Remove
the
jumper
on
the
boot-block
jumper
block
or
move
pins
2
and
3
to
return
to
normal
startup
mode.
9.
Restart
the
server.
The
system
should
start
up
normally.
Troubleshooting
the
Ethernet
controller
This
section
provides
troubleshooting
information
for
problems
that
might
occur
with
the
10/100
Mbps
Ethernet
controller.
Network
connection
problems
If
the
Ethernet
controller
cannot
connect
to
the
network,
check
the
following:
v
Make
sure
that
the
cable
is
installed
correctly.
The
network
cable
must
be
securely
attached
at
all
connections.
If
the
cable
is
attached
but
the
problem
persists,
try
a
different
cable.
If
you
set
the
Ethernet
controller
to
operate
at
100
Mbps,
you
must
use
Category
5
cabling.
If
you
directly
connect
two
workstations
(without
a
hub),
or
if
you
are
not
using
a
hub
with
X
ports,
use
a
crossover
cable.
Note:
To
determine
whether
a
hub
has
an
X
port,
check
the
port
label.
If
the
label
contains
an
X
,
the
hub
has
an
X
port.
18
:
Netfinity
5100
Type
8658
Models
11Y,
21Y,
31Y,
41Y,
51Y,
1RY,
2RY,
3RY,
4RY,
5RY