Recovering Bios; Troubleshooting The Ethernet Controller; Network Connection Problems - IBM xSeries 230 6RY Hardware Maintenance Manual

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:
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
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.
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
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.
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Hardware Maintenance Manual: xSeries 230 Models 6RY, 61Y
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.
and power cords; then, remove the cover.
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.
return to normal startup mode.
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.