IBM 7985, Problem Determination And Service Manual

Page: 85 / 218

v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v
See Chapter 4, “Parts listing, System x3655, Type 7985 and 7943,” on page 93 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
301-xxx-000 Failed keyboard test.
Note: After installing a USB keyboard, you
might have to use the Configuration/Setup
Utility program to enable keyboardless
operation and prevent the POST error
message 301 from being displayed during
startup.
1. Reseat the keyboard cable.
2. Replace the following components one at a time,
in the order shown, restarting the server each
time:
a. Keyboard
b. (Trained service technician only) System
board
405-xxx-000 Failed Ethernet test on Ethernet controller.
1. Run the Configuration/Setup Utility program and
make sure that Ethernet is not disabled and that
the BIOS code is at the latest level.
2. (Trained service technician only) Replace the
system board.
405-xxx-00n Failed Ethernet test on adapter in PCI slot
n.
1. Reseat the Ethernet adapter in slot n.
2. Replace the Ethernet adapter in slot n.
3. (Trained service technician only) Replace the
system board.
Recovering the BIOS code
If the BIOS code has become damaged, such as from a power failure during an
update, you can recover the BIOS code using the boot block jumper and a BIOS
recovery diskette.
Notes:
1. You can obtain a BIOS recovery diskette from one of the following sources:
v Download the BIOS code update from the World Wide Web and use it to
make a recovery diskette
v
Contact your IBM service representative.
2. To create and use a diskette, you must add an optional external diskette drive to
the server.
To download the BIOS code update from the World Wide Web, complete the
following steps:
1. Go to http://www.ibm.com/servers/eserver/support/xseries/index.html.
2. Select System x3655 from the Hardware list
3. From the Software list, select the applicable operating environment and click
GO .
4. Click the Download tab.
5. Click BIOS , drivers , and firmware for the applicable operating environment.
6. Download the latest BIOS code update.
7. Create the BIOS recovery diskette, following the instructions that come with the
update file that you downloaded.
Chapter 3. Diagnostics
67