Recovering Bios; Troubleshooting The Ethernet Controller; Network Connection Problems - IBM Netfinity 4500R Type 8656 Hardware Maintenance Manual

Recovering BIOS

Troubleshooting the Ethernet controller

Network connection problems

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Hardware Maintenance Manual: Netfinity 4500R Type 8656
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:
• Use the ServerGuide program to make a BIOS flash diskette.
• 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.
• Contact your IBM service representative.
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 block (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,
xx%, is displayed. When programming is underway, a further progress
report,
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 it to pins 2 and 3 to
return to normal startup mode.
9. Restart the server. The system should start up normally.
This section provides troubleshooting information for problems that might occur with
the 10/100 Mbps Ethernet controller.
If the Ethernet controller cannot connect to the network, check the following:
• 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.
n of 7 yy%, is displayed. When recovery is complete,
is displayed.